\\jciprod01\productn\N\NYL\24-3\NYL304.txt unknown Seq: 1 13-OCT-22 12:26
INTEGRATING FOOD INTO LOCAL
CLIMATE POLICY
Katrina M. Wyman*
Emma Dietz**
In the United States, governmental efforts to limit climate change have
largely focused on reducing greenhouse gas (GHG) emissions from trans-
portation and electricity, the top two sources of GHG emissions on a na-
tional level. With a few notable exceptions, American governmental entities
have paid much less attention to reducing GHG emissions from agriculture
or food. These are overlapping sources of emissions because many agricul-
tural emissions are released through the process of making food for human
consumption.
This Article argues that local governments are well-positioned to add
food policy more squarely to their climate policy toolkit and, perhaps in so
doing, to broaden the agenda of climate policy to incorporate more food
policy measures. In addition, we endorse a modest, but potentially impor-
tant, step which cities could take to help make the case for integrating food
policy into climate policy: estimating, on a regular basis, the GHG emis-
sions from food procured by city governments for city-funded facilities such
as schools, hospitals, homeless shelters, and jails. Better data on the contri-
butions of city government-funded consumption of food to GHG emissions
might help more people understand the climate costs of food choices and set
the stage for more governmental efforts to reduce GHG emissions from
* Katrina M. Wyman is the Sarah Herring Sorin Professor of Law at N.Y.U.
School of Law, and Co-Faculty Director of N.Y.U. Law’s Guarini Center on Environ-
mental, Energy and Land Use Law. Wyman thanks Amelia Linn for sparking Wy-
man’s interest in consumption-based greenhouse gas accounting as a tool for
measuring emissions from food. This Article also benefited from conversations with
David Allaway, Karen Cooke, Chris Jones, Jonathan Rosenbloom, and Aaron Toneys;
from comments from Danielle Spiegel-Feld and Amelia Linn; and from comments
made by panelists on a webinar on “Counting What We Consume” that Wyman mod-
erated for the Guarini Center on Environmental, Energy & Land Use Law. Sara
Savarani provided helpful research assistance. The Article emerged from a project on
what local governments can do to reduce meat and dairy consumption for which the
Guarini Center received funding from the Brooks Institute for Animal Rights Law &
Policy. The Article is the work of the authors, and it does not purport to represent the
views of N.Y.U., N.Y.U. Law, the Guarini Center, or the Brooks Institute, if any, on
the subject.
** Emma Dietz is a J.D. candidate at N.Y.U. School of Law (Class of 2024),
where she is concentrating in environmental law. Prior to law school, Dietz graduated
magna cum laude from Cornell University with a B.S. in Environmental Science.
Dietz thanks her family, including her parents, Jill and John Dietz, her aunt, Leslie
Abbey, and her uncle, Stephen Dietz, for supporting her education and igniting her
passion for environmentalism. Dietz also thanks Katrina Wyman for including her on
this project.
725
\\jciprod01\productn\N\NYL\24-3\NYL304.txt unknown Seq: 2 13-OCT-22 12:26
726 LEGISLATION AND PUBLIC POLICY [Vol. 24:725
agriculture and food as part of climate mitigation. More immediately, better
data would provide a basis for cities to commit to reducing GHG emissions
from their food purchases and tracking whether they are meeting these
GHG reduction commitments.
I
NTRODUCTION
.............................................. 726
I. T
HE
C
ONNECTION
B
ETWEEN
A
GRICULTURE
, F
OOD AND
C
LIMATE
C
HANGE
................................... 731
A. Sources of Agricultural Emissions................
731
B. Calls For Shifting to Earth-Friendly Diets to
Reduce GHG Emissions .........................
734
II. W
HY
C
ITIES
M
AY
B
E
W
ELL
-P
OSITIONED TO
I
NTEGRATE
F
OOD
I
NTO
C
LIMATE
M
ITIGATION
P
OLICY
............. 737
III. A M
ODEST
P
ROPOSAL
: E
STIMATING
GHG E
MISSIONS
F
ROM
C
ITY
G
OVERNMENT
P
ROCURED
F
OOD
........... 742
A. Existing Local GHG Emission Inventories and
Food ...........................................
743
B. Adding Consumption-Based GHG Emission
Inventories? .....................................
744
C. Estimating GHG Emissions From City-Government
Procured Food ..................................
748
C
ONCLUSION
................................................ 757
I
NTRODUCTION
In the United States, governmental efforts to limit climate change
have largely focused on reducing greenhouse gas (GHG) emissions
from transportation and electricity, the top two sources of national
GHG emissions.
1
With a few notable exceptions, governments have
paid much less attention to reducing GHG emissions from agriculture
or food.
2
These are overlapping sources of GHG emissions; many
emissions could be labeled either “food” or “agricultural” emissions
because many agricultural emissions are released in making food for
humans. In particular, the production of meat and dairy products for
1.
E
NVT
L
P
ROT
. A
GENCY
, I
NVENTORY OF
U.S. G
REENHOUSE
G
AS
E
MISSIONS AND
S
INKS
ES-26 tbl. ES-6 (2021) [hereinafter
I
NVENTORY
], https://www.epa.gov/sites/de-
fault/files/2021-04/documents/us-ghg-inventory-2021-main-text.pdf?VersionId=UUA
7i8WoMDBOc0M4ln8WVXMgn1GkujvD. [https://perma.cc/E9PZ-W3JK.]
2.
P
ETER
H. L
EHNER
& N
ATHAN
A. R
OSENBERG
, F
ARMING
F
OR
O
UR
F
UTURE
: T
HE
S
CIENCE
, L
AW
,
AND
P
OLICY OF
C
LIMATE
-N
EUTRAL
A
GRICULTURE
3, 7 (2021).
See
also OECD, Climate Change and Food Systems, https://www.oecd.org/agriculture/
topics/climate-change-and-food-systems/ (“Emission reductions from food production
have so far received less attention in GHG mitigation policies than those from energy,
transport and other industrial sectors; consequently emissions from agriculture could
become the dominant source of global emissions by mid-century.”).
\\jciprod01\productn\N\NYL\24-3\NYL304.txt unknown Seq: 3 13-OCT-22 12:26
2022] INTEGRATING FOOD 727
human consumption constitutes a significant share of agricultural
emissions.
3
Emissions from agriculture and food could be reduced up-
stream, meaning at the farm where food is produced, or downstream,
by persuading people living in urban areas to change the food that
they eat and to waste less food.
4
From one perspective, the limited governmental focus on agricul-
tural and food policy as climate policy is surprising. The Intergovern-
mental Panel on Climate Change and the World Resources Institute
have both published reports in recent years emphasizing the signifi-
cance of agriculture and food as sources of GHG emissions.
5
Interna-
tionally, agriculture accounts for 25% of GHG emissions; in the U.S.,
agriculture is the fifth largest source of emissions, accounting for 10%
3. See Lisa Friedman, Kendra Pierre-Louis & Somini Sengupta, The Meat Ques-
tion, by the Numbers,
N.Y. T
IMES
(Jan. 25, 2018), https://www.nytimes.com/2018/01/
25/climate/cows-global-warming.html (“In the United States, 42 percent of agricul-
tural emissions come from animal agriculture. Two-thirds of those gases are directly
emitted by ruminants: animals like cows, buffalo and sheep that use bacteria in their
stomachs to ferment food.”); Oliver Lazarus, Sonali McDermid & Jennifer Jacquet,
The Climate Responsibilities of Industrial Meat and Dairy Producers, 165
C
LIMATIC
C
HANGE
1, 18 (2021) (“beef production” is 40% of U.S. agricultural emissions and
roughly 3.7% of total U.S. GHG emissions); Janet Ranganathan, Daniel Vennard,
Richard Waite, Patrice Dumas, Brian Lipinski, Tim Searchinger & Globagri-WRR
Model Authors, Shifting Diets For a Sustainable Food Future, Creating a Sustainable
Food Future (World Res. Inst., Working Paper, 2016), https://files.wri.org/d8/s3fs-
public/Shifting_Diets_for_a_Sustainable_Food_Future_1.pdf. See also infra notes 25-
32 and accompanying text.
4. Food Waste FAQs,
U.S. D
EP
TOF
A
GRIC
.,
https://www.usda.gov/foodwaste/
faqs (last visited Feb. 15, 2022) [https://perma.cc/XC3D-Z5R3] (“In the United States,
food waste is estimated at between 30–40 percent of the food supply.”). See also infra
note 35.
5.
C
HEIKH
M
BOW
, C
YNTHIA
R
OSENZWEIG
, L
UIS
G. B
ARIONI
, T
IM
G. B
ENTON
,
M
ARIO
H
ERRERO
, M
URUKESAN
K
RISHNAPILLAI
, E
MMA
L
IWENGA
, P
RAJAL
P
RADHAN
,
M
ARTA
G. R
IVERA
-F
ERRE
, T
EK
S
APKOTA
, F
RANCESCO
N. T
UBIELLO
& Y
INLONG
X
U
,
Food Security, in
C
LIMATE
C
HANGE AND
L
AND
: A
N
IPCC S
PECIAL
R
EPORT ON
C
LI-
MATE
C
HANGE
, D
ESERTIFICATION
. L
AND
D
EGRADATION
, S
USTAINABLE
L
AND
M
AN-
AGEMENT
, F
OOD
S
ECURITY
,
AND
G
REENHOUSE
G
AS
F
LUXES IN
T
ERRESTRIAL
E
COSYSTEMS
(Noureddine Benkeblia et al. eds., 2019) [hereinafter
IPCC F
OOD
S
E-
CURITY
];
T
IM
S
EARCHINGER
, R
ICHARD
W
AITE
, C
RAIG
H
ANSON
& J
ANET
R
AN-
GANATHAN
,
W
ORLD
R
ES
. I
NST
., C
REATING A
S
USTAINABLE
F
OOD
F
UTURE
: A M
ENU OF
S
OLUTIONS TO
F
EED
N
EARLY
10 B
ILLION
P
EOPLE BY
2050
(2018). See also
B
RENT
L
OKEN
, J
EFF
O
PPERMAN
, S
TUART
O
RR
, M
ARTINA
F
LECKENSTEIN
, S
ARAH
H
ALEVY
,
P
ETER
M
C
F
EELY
, S
ARAH
P
ARK
& C
HRISTOPHER
W
EBER
, W
ORLD
W
ILDLIFE
F
UND
,
B
ENDING THE
C
URVE
: T
HE
R
ESTORATIVE
P
OWER OF
P
LANET
-B
ASED
D
IETS
(2020),
https://files.worldwildlife.org/wwfcmsprod/files/Publication/file/7b5iok5vqz_Bend-
ing_the_Curve__The_Restorative_Power_of_Planet_Based_Diets_FULL_REPORT_
FINAL.pdf.pdf;
T
IM
G. B
ENTON
, C
ARLING
B
IEG
, H
ELEN
H
ARWATT
, R
OSHAN
P
UDASAINI
& L
AURA
W
ELLESLEY
,C
HATHAM
H
OUSE
, F
OOD
S
YSTEM
I
MPACTS ON
B
I-
ODIVERSITY
L
OSS
: T
HREE
L
EVERS FOR
F
OOD
S
YSTEM
T
RANSFORMATION IN
S
UPPORT
OF
N
ATURE
(2021), https://www.chathamhouse.org/2021/02/food-system-impacts-bio
diversity-loss;
L
EHNER
& R
OSENBERG
, supra note 2.
\\jciprod01\productn\N\NYL\24-3\NYL304.txt unknown Seq: 4 13-OCT-22 12:26
728 LEGISLATION AND PUBLIC POLICY [Vol. 24:725
of national emissions in 2019 (compared with 29% from transporta-
tion and 25% from electricity).
6
However, from other perspectives, the
limited attention paid to agriculture and food as part of climate policy
is par for the course. The agricultural industry is famously politically
powerful, and it is exempted from many provisions of federal environ-
mental law or only weakly regulated.
7
Moreover, the subsets of the
industry that would need to be regulated if government were to ad-
dress GHG emissions on the supply side—meat and dairy producers—
include some of the most powerful components of the industry.
8
Lastly, regulating GHG emissions by seeking to reduce consumer de-
mand for meat and dairy almost certainly would be politically conten-
tious in many places, especially at the national level. For many people,
food is a matter of personal choice, heavily influenced by family, cul-
ture, and religion, and meat and dairy are popular foods and important
sources of protein and other nutrients.
9
Perhaps sensing the political
obstacles likely to be encountered in trying to change diets to address
climate change, major U.S. environmental groups have generally not
argued that climate policy should include a focus on food, although
there are some environmental groups that work on food policy.
10
6.
I
NVENTORY
, supra note 1. In Table ES-6 in EPA’s 1990–2019 national GHG
inventory, agriculture is the fourth largest source of emissions because this table treats
the residential and commercial building sectors distinctly and does not aggregate them
as does the EPA source cited earlier in this footnote. Id. at ES-26 tbl. ES-6.
7. See, e.g., Margot J. Pollans, Drinking Water Protection and Agriculture Excep-
tionalism, 77
O
HIO
S
T
. L.J.
1195, 1213–14 n.114 (2016) (citing J.B. Ruhl, Farms,
Their Environmental Harms, and Environmental Law, 27
E
COLOGY
L.Q.
263,
298–304 (2000)). See also
K
AREN
B
RADSHAW
, W
ILDLIFE AS
P
ROPERTY
O
WNERS
: A
N
EW
C
ONCEPTION OF
A
NIMAL
R
IGHTS
106 (2020) (attributing the outsourcing to Mex-
ico of efforts to recover thick-billed parrots, an endangered species, partly to the polit-
ical power of cattle grazers in Southern Arizona).
8. Jennifer
Jacquet, The Meat Industry is Doing Exactly What Big Oil Does to
Fight Climate Action,
W
ASH
. P
OST
.
(May 14, 2021), https://www.washingtonpost.
com/outlook/the-meat-industry-is-doing-exactly-what-big-oil-does-to-fight-climate-
action/2021/05/14/831e14be-b3fe-11eb-ab43-bebddc5a0f65_story.html (comparing
meat and dairy companies to oil and gas companies); Andrew Jacobs, Scientific Panel
on New Dietary Guidelines Draws Criticism from Health Advocates,
N.Y. T
IMES
(June 17, 2020), https://www.nytimes.com/2020/06/17/health/diet-nutrition-guide-
lines.html (benefits of a plant-based diet for health and sustainability omitted from
2015 national dietary guidelines after “an outcry from the livestock industry”). The
slaughtering and packing of meat are concentrated in four major companies. Peter S.
Goodman, Record Beef Prices, but Ranchers Aren’t Cashing In,
N.Y. T
IMES
(Dec. 29,
2021), https://www.nytimes.com/2021/12/27/business/beef-prices-cattle-
ranchers.html.
9. See, e.g.,
H
ARRIET
B
ULKELEY
, C
ITIES AND
C
LIMATE
C
HANGE
67 (2013)
(describing the role of dairy products in the UK).
10.
The Natural Resource Defense Council works on food as part of its New York
Regional, Healthy People & Thriving Communities Program. Margaret Brown &
Mark Izeman, New York City Puts Food Front and Center,
NRDC
(Oct. 4, 2019),
\\jciprod01\productn\N\NYL\24-3\NYL304.txt unknown Seq: 5 13-OCT-22 12:26
2022] INTEGRATING FOOD 729
Notwithstanding the limited attention generally paid to agricul-
ture and food as part of climate policy, there have been some govern-
mental efforts to reduce GHG emissions from this sector. The State of
California has a target to reduce methane emissions from the dairy and
livestock sectors by 40% by 2030 (relative to 2013 emissions).
11
Most notably for present purposes, some local governments have
taken measures to reduce meat consumption and to increase fruit and
vegetable consumption, some of which have been partly framed as
efforts to reduce GHG emissions as well as improve public health.
12
A number of local government entities across the U.S. are using their
procurement of food for city operations, schools, hospital, and jails to
reduce the consumption of meat.
13
Meatless Mondays and Vegan
Fridays in locally administered operations, such as schools, are a tan-
gible example.
14
At a policy level, in 2021, New York City signed the
https://www.nrdc.org/experts/margaret-brown/new-york-city-puts-food-front-and-
center. Earthjustice has a Sustainable Food and Farming Program. Sustainable Food
& Farming Program: Who We Are,
E
ARTHJUSTICE
,
https://earthjustice.org/about/of-
fices/sustainable-food-farming (last visited Feb. 15, 2022) [https://perma.cc/3NLC-
7G63]. For an article identifying the potential benefits of reducing meat consumption
through demand-side measures, see Lingxi Chenyang, Is Meat the New Tobacco?
Regulating Food Demand in the Age of Climate Change, 49
E
NV
T
L. R
EP
.
10344,
10349–52 (2019).
11.
To achieve this goal, California has implemented several programs aimed at
reducing agricultural GHG emissions and sequestering carbon, including research and
development on dairy digesters, and programs aimed at manure management, healthy
soils, and water efficiency. For analysis of the progress toward achieving this target,
see generally
C
AL
. L
EGIS
. A
NALYST
S
O
FFICE
, A
SSESSING
C
ALIFORNIA
S
C
LIMATE
P
OLICIES
– A
GRICULTURE
(2021),
https://lao.ca.gov/Publications/Report/4483;
C
AL
.
A
IR
R
ES
. B
D
., A
NALYSIS OF
P
ROGRESS
T
OWARD
A
CHIEVING THE
2030 D
AIRY AND
L
IVESTOCK
S
ECTOR
M
ETHANE
E
MISSIONS
T
ARGET
(2021), https://ww2.arb.ca.gov/
sites/default/files/2021-06/draft-2030-dairy-livestock-ch4-analysis.pdf; Liza Gross,
Can California Reduce Dairy Methane Emissions Equitably?,
I
NSIDE
C
LIMATE
N
EWS
(A
UG
. 9, 2021),
https://insideclimatenews.org/news/09082021/california-dairy-meth-
ane-emissions/. In contrast, New York State, which, like California, has an aggressive
state legislative mandate to decarbonize its economy, has expressly exempted live-
stock emissions from binding GHG emission control requirements.
N.Y. E
NV
T
C
ON-
SERV
. L
AW
§ 75-0109(2)(b).
12. See generally
A
DALENE
M
INELLI
, J
EFF
S
EBO
, D
ANIELLE
S
PIEGEL
-F
ELD
& K
A-
TRINA
W
YMAN
, T
OWARDS
P
LANT
-F
ORWARD
D
IETS
: A T
OOLKIT FOR
L
OCAL
P
OLICY-
MAKERS
(2021), available at https://drive.google.com/file/d/1kFZX4AS4_2XEUb
2XZarihmCJDYRnDG73/view.
13.
M
INELLI ET AL
., supra note 12, at 6-8; Lisa Held, NYC is on the Cusp of Making
its Food Purchasing Sustainable. It Won’t be Easy,
C
IVIL
E
ATS
(Dec. 21, 2021),
https://civileats.com/2021/12/21/nyc-is-on-the-cusp-of-making-its-food-purchasing-
sustainable-it-wont-be-easy/.
14.
M
INELLI ET AL
., supra note 12, at 6 (referring to examples of Meatless Mondays
in school systems in the U.S.); Priya Krishna, New York’s Mayor is Building An
Agenda Around Food. Will It Satisfy?,
N.Y. T
IMES
(March 14, 2014), https://
www.nytimes.com/2022/03/14/dining/eric-adams-vegan-nyc.html (referring to the
\\jciprod01\productn\N\NYL\24-3\NYL304.txt unknown Seq: 6 13-OCT-22 12:26
730 LEGISLATION AND PUBLIC POLICY [Vol. 24:725
Cool Fool pledge, committing itself to reducing the GHG emissions
from the food that the city procures by 25% by 2030.
15
That same
year, Washington, D.C. passed legislation requiring that the city re-
duce the GHG emissions from the food that it purchases by 25% by
2030 (a target consistent with the Cool Food pledge), and develop a
mechanism to track the emissions from the food that the city govern-
ment purchases.
16
Echoing the local use of governmental food pro-
curement to reduce GHG emissions, the Biden Administration is
apparently considering developing policies to reduce these emissions
from federal food procurement.
17
This Article argues that local governments are well-positioned to
add food policy more squarely to their climate policy toolkit and, per-
haps in so doing, to broaden the agenda of climate policy to incorpo-
rate more food policy measures. In addition, we endorse a modest, but
potentially important, step which cities could take to help make the
case for integrating food policy into climate policy and tracking their
progress in reducing GHG emissions from food: estimating, on a regu-
lar basis, the GHG emissions from food procured by city governments
for city-funded facilities such as schools, hospitals, homeless shelters,
and jails. Better data on the contributions of city government-funded
consumption of food to GHG emissions might help more people un-
launch of Vegan Fridays in New York City schools); Jessica Fu, New York City’s
Vegan-Fridays School-Food Program Is As Vegan As Its Mayor – That is, Not En-
tirely,
T
HE
C
OUNTER
(Feb. 9, 2022), https://thecounter.org/new-york-city-vegan-
fridays-school-lunch-food-program-eric-adams/ (school lunch offerings on Vegan
Fridays are not entirely vegan and Vegan Fridays are not entirely novel).
15. Sustainable Food,
NYC O
FF
.
OF
C
LIMATE
& S
USTAINABILITY
, https://
www1.nyc.gov/site/sustainability/achievements/sustainable-food.page (last visited
Feb. 27, 2022)) (“In 2021, New York City became the first city in the nation to join
the Cool Food Pledge. Through the pledge, the City committed to reduce the green-
house gases associated with the food it serves by 25 percent by 2030—a level of
ambition in line with achieving the goals of the Paris Climate Agreement.”). In Febru-
ary 2021, New York City also released a 10-year food policy plan, “Food Forward
NYC,” which includes sustainability goals for the city’s food system such as pursuing
“legislative changes to allow the City to directly address a broader range of [environ-
mental] challenges through its food procurement.”
M
AYOR
S
O
FF
.
OF
F
OOD
P
OL
Y
,
F
OOD
F
ORWARD
NYC: A 10 Y
EAR
F
OOD
P
OLICY
P
LAN
70-71 (2021) (Goal 4(A)).
https://www1.nyc.gov/assets/foodpolicy/downloads/pdf/Food-Forward-NYC.pdf.
16. Green Food Purchasing Amendment Act of 2021, D.C. Code § 8-151.09b (d).
17.
In a December 2021 Executive Order, President Biden directed that “[t]he Chair
of CEQ [Council on Environmental Quality] shall consider establishing Federal food
procurement policies to reduce associated greenhouse gas emissions and drive sus-
tainability in the Federal food supply chain.” Press Release, The White House, Execu-
tive Order on Catalyzing Clean Energy Industries and Jobs Through Federal
Sustainability (Dec. 8, 2021), https://www.whitehouse.gov/briefing-room/presiden-
tial-actions/2021/12/08/executive-order-on-catalyzing-clean-energy-industries-and-
jobs-through-federal-sustainability/. [https://perma.cc/9VQH-9XPJ].
\\jciprod01\productn\N\NYL\24-3\NYL304.txt unknown Seq: 7 13-OCT-22 12:26
2022] INTEGRATING FOOD 731
derstand the climate costs of food choices and set the stage for more
governmental efforts to reduce GHG emissions from agriculture and
food as part of climate mitigation. More immediately, better data
would provide a basis for cities to commit to reducing GHG emissions
from their food purchases, and tracking whether they are meeting
these GHG reduction commitments.
I.
T
HE
C
ONNECTION
B
ETWEEN
A
GRICULTURE
, F
OOD AND
C
LIMATE
C
HANGE
While many people recognize that burning fossil fuels such as
coal, oil, and natural gas contributes to climate change, fewer people
are likely aware that agriculture also contributes to climate change.
This part sets out the key ways in which agriculture contributes to
climate change and discusses several of the leading sources arguing
that changes in human food choices can help reduce agricultural emis-
sions globally and in the United States.
A. Sources of Agricultural Emissions
Agriculture contributes to greenhouse gas emissions in several
ways
18
which span the supply chain.
19
First, land use changes are a
primary contributor.
20
Clearing land for growing crops to feed animals
and humans,
21
as well as deforestation for cattle grazing in areas such
as the Brazilian Amazon, leads to the release of GHG emissions.
22
In
18. GLEAM 2.0 – Assessment of Greenhouse Gas Emissions and Mitigation Poten-
tial,
F
OOD
& A
G
. O
RG
.
OF THE
U.N.,
https://www.fao.org/gleam/results/en/ (last vis-
ited Feb. 15, 2022) [https://perma.cc/GN3S-S7DN].
19. Hannah
Ritchie, You Want to Reduce the Carbon Footprint of Your Food? Fo-
cus on What You Eat, Not Whether Your Food is Local,
O
UR
W
ORLD IN
D
ATA
(Jan.
24, 2020), https://ourworldindata.org/food-choice-vs-eating-local.
20. Id.
21.
John Lynch, Michelle Cain, David Frame & Raymond Pierrehumbert, Agricul-
ture’s Contribution to Climate Change and Role in Mitigation is Distinct from
Predominantly Fossil CO
2
-Emitting Sectors,
F
RONTIERS IN
S
USTAINABLE
F
OOD
S
YS
.
(
2021), https://www.frontiersin.org/articles/10.3389/fsufs.2020.518039/full.
22.
Lazarus et al., supra note 3, at 16 (“The majority of Cargill’s and Tyson’s
emissions are the result of land-use changes for feed production in places like the
Brazilian Amazon.”); Matthew N. Hayek, Helen Harwatt, William Ripple & Nathan-
iel Mueller, The Carbon Opportunity Cost of Animal-Sourced Food Production on
Land,
N
AT
. S
USTAINABILITY
4 (2021),
https://scientists.forestry.oregonstate.edu/
sites/sw/files/Hayek2020.pdf. Deforestation contributes to climate change in a number
of ways. Trees and forests store carbon dioxide, and, when they are destroyed through
processes such as slash-and-burn deforestation, the carbon they stored is released back
into the atmosphere. Additionally, trees are a natural carbon sink, meaning they ab-
sorb carbon dioxide to grow; deforestation eliminates this carbon sink. Tropical defor-
estation and global warming,
U
NION OF
C
ONCERNED
S
CIENTISTS
(2021), https://
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732 LEGISLATION AND PUBLIC POLICY [Vol. 24:725
the United States, agricultural soil management practices—such as the
production and usage of fertilizers—also lead to significant GHG
emissions in the form of nitrous oxide.
23
The need to grow crops to
feed animals raised for human consumption leads some people to call
animals “inefficient food converters” because humans could instead
eat the crops directly.
24
Beyond land management, livestock them-
selves produce emissions.
25
Cattle release methane when they belch
due to their digestive process of enteric fermentation;
26
manure also
emits methane and nitrous oxide.
27
In fact, in the United States, “56
percent of total [CO
2
e] emissions from the agricultural sector” come
from livestock.
28
Meat and dairy are the greatest culprits.
29
Encapsu-
lating the contributions of cows to climate change, Jeremy Coller,
www.ucsusa.org/resources/tropical-deforestation-and-global-warming (last updated
Nov. 10, 2021) [https://perma.cc/94CJ-3HRS].
23.
I
NVENTORY
, supra note 1, at 2-21 & 2-22.
24. Feed-to-Meat – Conversion Inefficiency Ratios,
A W
ELL
-F
ED
W
ORLD
,
https://
awellfedworld.org/feed-ratios/ (last visited Feb. 15, 2022) [https://perma.cc/RVJ7-
NY65]. See also Jillian P Fry, Nicholas Mailloux, David Love, Michael Milli & Ling
Cao, Feed Conversion Efficiency in Aquaculture: Do We Measure It Correctly?, 13
E
NV
T
R
SCH
. L
ETTER
024017 (2018), https://iopscience.iop.org/article/10.1088/1748-
9326/aaa273/meta (stating that Feed Conversion Ratios (FCRs) “are typically
6.0–10.0 for beef” compared to “1.7–2.0 for chicken”); Id. (using the common mea-
surement of Feed Conversion Ratios, “fed aquaculture and chickens are similarly effi-
cient at converting feed into animal biomass, and both are more efficient compared to
pigs and cattle”). According to the World Resources Institute, “[p]roducing beef, for
example, uses 20 times the land and emits 20 times the emissions as producing beans,
per gram of protein” Richard Waite & Daniel Vennard, Without Changing Diets, Ag-
riculture Alone Could Produce Enough Emissions to Surpass 1.5
°
C of Global Warm-
ing,
W
ORLD
R
ES
. I
NST
.
(Oct. 17, 2018), https://www.wri.org/insights/without-
changing-diets-agriculture-alone-could-produce-enough-emissions-surpass-15degc.
See also Gidon Eshel, Alon Shepon, Tamar Makov & Ron Milo, Land, Irrigation
Water, Greenhouse Gas, and Reactive Nitrogen Burdens of Meat, Eggs, and Dairy
Production in The United States, 111
P
ROC
. N
AT
L
A
CAD
. S
CI
.
11996, 11998 (2014),
https://www.pnas.org/content/111/33/11996 (“beef is consistently the least resource-
efficient of the five animal categories [which are beef, dairy, poultry, pork, and eggs]
in all four considered metrics [which are land, water, GHGs, reactive nitrogen]”).
25. Feed-to-Meat
– Conversion Inefficiency Ratios, supra
note 24.
26.
Livestock, and especially ruminant livestock such as cows, produce methane
during digestion, which results in “over a quarter of the emissions from the agricul-
tural economic sector.” Sources of Greenhouse Gas Emissions,
E
NV
T
P
ROT
. A
GENCY
,
https://www.epa.gov/ghgemissions/sources-greenhouse-gas-emissions (last visited
Feb. 15, 2022) [https://perma.cc/CL69-798T].
27.
According to the EPA, “[m]anure management accounts for about 12 percent of
the total greenhouse gas emissions from the Agriculture economic sector in the United
States.” Id. When methane emissions from enteric fermentation and manure manage-
ment are aggregated, agriculture is the largest source of methane emissions in the
U.S., surpassing natural gas and oil production. Id.
28.
Livestock includes beef cattle, dairy cattle, swine, horses, mules, goats, sheep,
bison, and poultry. The majority of emissions are from beef cattle, followed by dairy
cattle and then swine.
U.S. D
EP
TOF
A
GRIC
., U.S. A
GRICULTURE AND
F
ORESTRY
\\jciprod01\productn\N\NYL\24-3\NYL304.txt unknown Seq: 9 13-OCT-22 12:26
2022] INTEGRATING FOOD 733
chair of the Farm Animal Investment Risk & Return (FAIRR) net-
work, recently proclaimed “cows are the new coal.”
30
Other sources of emissions on the farm include the energy costs
of farm machinery.
31
And, while most agricultural GHG emissions are
generated in the production phase,
32
beyond the farm, converting raw
animal products to food items,
33
transporting food from where it is
grown to where it is consumed,
34
retail, and packaging all contribute
to GHG emissions stemming from agriculture as well. Food waste is
also a significant contributor to total food-related emissions.
35
World-
G
REENHOUSE
G
AS
I
NVENTORY
: 1990–2018
at 12–13 (2022), https://www.usda.gov/
sites/default/files/documents/USDA-GHG-Inventory-1990-2018.pdf.
29.
Data from the USDA shows that “beef cattle contributed the largest fraction (55
percent) of GHG emissions from livestock in 2018, with the majority of emissions in
the form of CH4 from enteric fermentation and N2O from grazed land soils,” and that
“dairy cattle were the second-largest livestock source of GHG emissions (31 per-
cent).” Id.
30. Aryn
Baker, “Cows Are the New Coal.” How the Cattle Industry Is Ignoring
the Bottom Line When It Comes to Methane Emissions,
T
IME
(D
EC
. 2, 2021),
https://
time.com/6125014/cows-agricultural-emissions/; Press Release, FAIRR, $5 Trillion
Investor Group and Former UN Secretary-General Urge G20 Leaders to Set Clear
Emissions Targets for Agriculture (June 30, 2021), https://www.fairr.org/article/5-tril-
lion-investor-group-and-former-un-secretary-general-urge-g20-leaders-to-set-clear-
emission-targets-for-agriculture/; see also Treating Beef Like Coal Would Make a Big
Dent in Greenhouse-Gas Emissions,
T
HE
E
CONOMIST
(Oct. 2, 2021), https://
www.economist.com/graphic-detail/2021/10/02/treating-beef-like-coal-would-make-
a-big-dent-in-greenhouse-gas-emissions.
Grass-fed beef might be thought to be more environmentally friendly than fac-
tory-farmed beef. However, grass-fed cattle produce more methane emissions than
factory-farmed beef. See, e.g., Matthew N. Hayek & Rachael D. Garrett, Nationwide
Shift to Grass-fed Beef Requires Larger Cattle Population, 13
E
NV
T
R
SCH
. L
ETTERS
1, 4 (2018) (“Taken together, an exclusively grass-fed beef cattle herd would raise the
United States’ total methane emissions by approximately 8%.”).
31.
Ray Massey & Drew Kientzy
,
Agriculture and Greenhouse Gas Emissions,
E
X-
TENSION
U
NIV
.
OF
M
O
.,
2 (2021), https://extension.missouri.edu/publications/g310
(“When electric-related emissions are distributed to the economic sectors, agriculture
released an additional 35 MMT Carbon Dioxide Equivalent.”).
32. Ritchie, supra note 19.
33. Id.
34.
Christopher L. Weber & H. Scott Matthews, Food-Miles and the Relative Cli-
mate Impacts of Food Choices in the United States, 42
E
NV
T
S
CI
. & T
ECH
.
3508
(2008), https://pubs.acs.org/doi/10.1021/es702969f. This article finds that while food
may be transported long distances, “GHG emissions associated with food are domi-
nated by the production phase,” and that when it comes to food transport, “transporta-
tion as a whole represents only 11% of life-cycle GHG emissions.” Id. at 3508.
Notably, the percentage of total emissions that transport represents is higher for non-
meat products.
35.
A 2018 study examining global emissions from food “found that almost one-
quarter—24%—of food’s emissions come from food that is lost in supply chains or
wasted by consumers. Almost two-thirds of this (15% of food emissions) comes from
losses in the supply chain which result from poor storage and handling techniques;
lack of refrigeration; and spoilage in transport and processing. The other 9% comes
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734 LEGISLATION AND PUBLIC POLICY [Vol. 24:725
wide, across the supply chain, ruminant meat (such as beef and lamb)
and dairy have the greatest GHG emissions per kilogram of food
product.
36
B. Calls For Shifting to Earth-Friendly Diets to Reduce GHG
Emissions
One way in which agricultural emissions can be mitigated is by
changing the food that people eat. Recognizing the contributions of
agriculture and food to climate change, the Intergovernmental Panel
on Climate Change (IPCC) and World Wildlife Fund (WWF) have
recently issued reports highlighting the potential to mitigate global
GHG emissions by reducing consumption of meat and dairy prod-
ucts.
37
The IPCC report found that a diet high in coarse grains, fruit,
and vegetables and low in animal-sourced foods presents “major op-
portunities for reducing GHG emissions from food systems.”
38
A diet
such as this, which is “plant-based, but allow[s] for moderate animal-
source food consumption, including meat” is known as a “flexitarian”
diet.
39
The WWF report found that “[f]ollowing a flexitarian diet
would reduce total global food-related GHG emissions [from 14Gt]
down to 9.9Gt.”
40
The WWF report also highlights the potential to
reduce emissions by cutting back on meat and dairy consumption.
41
As it stands, “[r]ed meat and dairy currently account for just over half
of total global food-related GHG emissions (7.4Gt of 14.3Gt)”—but
shifting to a flexitarian diet reduces that number to only 2.9Gt.
42
Go-
ing a step further and shifting to an entirely vegan diet (where no
animal products are consumed) would allow GHG emissions to be
“reduced to near the climate planetary boundary for food solely
through a dietary shift.”
43
The WWF report lays out the need to “re-
from food thrown away by retailers and consumers.” Hannah Ritchie, Food Waste is
Responsible for 6% of Global Greenhouse Gas Emissions,
O
UR
W
ORLD IN
D
ATA
(March 18, 2020), https://ourworldindata.org/food-waste-emissions (drawing on Jo-
seph Poore & Thomas Nemecek, Reducing Food’s Environmental Impacts Through
Producers and Consumers, 360
S
CI
.
987 (2018), https://www.science.org/doi/
10.1126/science.aaq0216). This means that “food wastage is responsible for around
6% of total global greenhouse gas emissions.” Id.
36. Ritchie, supra note 19.
37.
IPCC F
OOD
S
ECURITY
,
supra note 5;
L
OKEN ET AL
.,
supra note 5, at 27.
38.
IPCC F
OOD
S
ECURITY
,
supra note 5, at 440.
39.
L
OKEN ET AL
.,
supra note 5, at 9. (“Dietary Patterns Assessed”).
40.
L
OKEN ET AL
.,
supra note 5, at 27.
41. Id. at 28.
42. Id.
43. Id. at 27; Bruce M. Campbell, Douglas J. Beare, Elena M. Bennett, Jason M.
Hall-Spencer, John S. I. Ingram, Fernando Jaramillo, Rodomiro Ortiz, Navin
Ramankutty, Jeffrey A. Sayer & Drew Shindell, Agriculture Production as a Major
\\jciprod01\productn\N\NYL\24-3\NYL304.txt unknown Seq: 11 13-OCT-22 12:26
2022] INTEGRATING FOOD 735
duce total greenhouse gas emissions from food production to at most 5
Gt CO
2
-eq” and urges that shifting diets away from meat and dairy can
help us get there.
44
Such calls have also been made on a national scale. The World
Resources Institute (WRI) and Chatham House have both issued re-
ports recently, urging increased consumption of plants and reduction
in meat consumption in the United States.
45
The WRI found that agri-
cultural land use has a massive impact on carbon emissions and that
beef accounts for roughly half of that land use.
46
In fact, by amortizing
the carbon emissions associated with agricultural land use changes
over a 20 year period, they determined that the average U.S. diet
causes emissions of nearly 17 tons of CO
2
e per person per year—an
amount on par with per capita emissions from energy use in the
United States.
47
The WRI also identified “reductions in consumption
of ruminant meat (beef, sheep, and goat) as the most promising strat-
egy for reducing land requirements and GHG emissions.”
48
Support-
ing this point, a 2020 study found that if U.S. consumers cut their
consumption of animal-based food in half, it would lead to a 35% drop
in per capita GHG emissions “associated with agricultural production
of the average diet” from baseline levels.
49
Cutting consumption even
further—down to 10% of the current level—would reduce emissions
associated with animal-based food products by 51%.
50
This study em-
phasizes the key role diet can play in mitigating emissions.
The Chatham House report echoes these calls for dietary shifts,
proclaiming that “global dietary patterns need to converge around di-
ets based more on plants.”
51
The report states that if everyone in the
United States made the switch from beef to beans, it would contribute
substantially to achieving climate goals (in this example, “meeting be-
tween 42 and 74 per cent of the U.S. GHG reduction goal for
Driver of the Earth System Exceeding Planetary Boundaries, 22
E
COLOGY
& S
OC
Y
8
(2017). The WWF report cites Campbell et al. in their discussion of climate planetary
boundaries (CPBs). CPBs are “the boundary of a safe operating space for humanity.”
Id. at 8.
44.
L
OKEN ET AL
.,
supra note 5, at 25, 28.
45.
S
EARCHINGER ET AL
., supra note 5;
B
ENTON ET AL
.,
supra note 5.
46.
S
EARCHINGER ET AL
., supra note 5, at 15.
47. Id. at n.115
48. Id. at 66.
49.
M
ARTIN
H
ELLER
, G
REGORY
K
EOLEIAN
& D
IEGO
R
OSE
, C
TR
.
FOR
S
USTAINABLE
S
YS
., R
EPORT
N
O
. CSS20-01, I
MPLICATIONS OF
F
UTURE
US D
IET
S
CENARIOS ON
G
REENHOUSE
G
AS
E
MISSIONS
3 (2020), https://css.umich.edu/sites/default/files/publi-
cation/CSS20-01.pdf.
50. Id.
51.
B
ENTON ET AL
., supra note 5, at 2.
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736 LEGISLATION AND PUBLIC POLICY [Vol. 24:725
2020”).
52
The public good from shifting diets away from meat and
dairy does not stop at climate impacts; such shifts could also lead to
improved dietary quality, reduced incidence of diet-related disease
(especially that associated with the consumption of red meat), and re-
duced pandemic risk.
53
Air quality also might improve, with a recent
study finding that in the United States, “80% of the 15,900 annual
deaths that result from food-related fine particulate matter (PM2.5)
pollution are attributable to animal-based foods.”
54
While there are powerful arguments for reducing meat and dairy
consumption to reduce GHG emissions, some argue that such reduc-
tions in consumption are unnecessary to address climate change. For
example, researchers are uncovering ways of reducing the methane
emissions from cow belches by changing the foods that cows are fed.
Introducing foods, such as seaweed, into the diets of cows might re-
duce their methane emissions from belching, at least within industrial
agricultural settings.
55
However, even if methane emissions from ru-
52. Id. at 23–24.
53. Id. at 24.
54.
Nina Domingo, Srinidhi Balasubramanian, Sumil K. Thakrar, Michael A. Clark,
Peter J. Adams, Julian D. Marshall, Nicholas Z. Muller, Spyros N. Pandis, Stephen
Polasky, Allen L. Robinson, Christopher W. Tessum, David Tilman, Peter Tschofen
& Jason D. Hill, Air quality–related health damages of food,
P
ROC
. N
AT
L
A
CAD
. S
CI
.
(May 18, 2021), https://www.pnas.org/content/118/20/e2013637118.
55. Maddie
Duley, UC Davis Research Shows Seaweed Reduces Cow Methane
Emissions by as Much as 82%,
C
AL
. A
GGIE
(Apr. 13, 2021), https://theaggie.org/
2021/04/13/uc-davis-research-shows-seaweed-reduces-cow-methane-emissions-by-as-
much-as-82/; Oliver Morrison, JBS Inks Feed Additive Deal to Cut Cow Methane
Emissions Globally,
F
OOD
N
AVIGATOR
(Nov. 8, 2021), https://www.foodnavigator.
com/Article/2021/11/08/JBS-inks-feed-additive-deal-to-cut-cow-methane-emissions-
globally; Bovaer: Farm-wise Climate-Friendly,
DSM
, https://www.dsm.com/corpo-
rate/markets/animal-feed/minimizing-methane-from-cattle.html (last visited Feb. 15,
2022). For a defense of animal agriculture that critiques what it calls the “narrative”
that cows are the new coal, see Joseph W. McFadden, Cows are Not the New Coal –
Here’s Why,
T
HE
H
ILL
(Dec. 16, 2021), https://thehill.com/opinion/energy-environ-
ment/586052-cows-are-not-the-new-coal-heres-why. For an overview of the results of
research on the effects of food additives on methane emissions from enteric fermenta-
tion, see
R
OGER
S. H
EGARTY
, R
ODRIGO
P
ASSETTI
, K
YLE
D
ITTMER
, Y
UXI
W
ANG
, S
ADIE
S
HELTON
, J
EREMY
E
MMET
-B
OOTH
, E
VA
W
OLLENBERG
, T
IM
M
C
A
LLISTER
, S
INEAD
L
EAHY
, K
AREN
B
EAUCHEMIN
& N
OEL
G
URWICK
, G
LOBAL
R
SCH
. A
LL
.
ON
A
GRIC
.
G
REENHOUSE
G
ASES
, A
N
E
VALUATION OF
E
VIDENCE FOR
E
FFICACY AND
A
PPLICABIL-
ITY OF
M
ETHANE
I
NHIBITING
F
EED
A
DDITIVES FOR
L
IVESTOCK
(2021), https://
hdl.handle.net/10568/116489. See also M. Honan, X. Feng, J.M. Tricarico & E.
Kebreab, Feed Additives as a Strategic Approach to Reduce Enteric Methane Produc-
tion in Cattle: Modes of Action, Effectiveness and Safety,
A
NIMAL
P
ROD
. S
CI
. (2020),
https://www.publish.csiro.au/an/an20295. According to a 2021 draft report from the
California Air Resources Board, “no feed additives with demonstrated long-term
methane mitigation potential have been approved by the U.S. Food and Drug Admin-
istration and are commercially available.”
C
AL
. A
IR
R
ES
. B
D
., A
NALYSIS OF
P
ROGRESS
TOWARD
A
CHIEVING THE
2030 D
AIRY AND
L
IVESTOCK
S
ECTOR
M
ETHANE
E
MISSIONS
\\jciprod01\productn\N\NYL\24-3\NYL304.txt unknown Seq: 13 13-OCT-22 12:26
2022] INTEGRATING FOOD 737
minants could be reduced by altering their food, animal agriculture for
human consumption would still be releasing GHGs from deforestation
and land use changes, fertilizers, and manure, at least under existing
technology, suggesting that there are still reasons from a climate per-
spective for reducing human consumption of meat and dairy. Moreo-
ver, there are arguments that reducing meat consumption also might
help humans adapt to climate change by freeing up water and energy
for purposes other than raising meat for human consumption.
56
II.
W
HY
C
ITIES
M
AY
B
E
W
ELL
-P
OSITIONED TO
I
NTEGRATE
F
OOD
I
NTO
C
LIMATE
M
ITIGATION
P
OLICY
There are four reasons for thinking that local governments may
be well-placed to seek to reduce meat and dairy consumption as part
of their climate policy, notwithstanding the political forces likely to
resist such efforts to lower consumption.
First, many cities are politically progressive places where Demo-
crats predominate, with few climate change deniers among the voting
public.
57
This means that city residents are more likely to support cli-
mate action in the first place than people living in rural areas.
58
None-
theless, it is important not to overstate the extent to which city
governments are currently reducing GHG emissions. Some data sug-
gests that city governments may be better at rhetorically embracing
action to reduce GHG emissions than actually reducing these
emissions.
59
T
ARGET
ES-4 (June 2021), https://ww2.arb.ca.gov/sites/default/files/2021-06/draft-
2030-dairy-livestock-ch4-analysis.pdf.
56. Chenyang, supra note 10, at 10347.
57. Derek Thompson, How Democrats Conquered the City,
T
HE
A
TLANTIC
(Sep-
tember 13, 2019), https://www.theatlantic.com/ideas/archive/2019/09/brief-history-
how-democrats-conquered-city/597955/.
58.
Emily Pechar Diamond, Robert Bonnie & Elizabeth Rowe, Rural Attitudes on
Climate Change,
D
UKE
N
ICHOLAS
I
NST
.
FOR
E
NV
T
P
OL
Y
S
OLUTIONS
6
(2020),
https://nicholasinstitute.duke.edu/publications/rural-attitudes-climate-change-lessons-
national-and-midwest-polling-and-focus-groups (“In general, rural voters were more
divided about the importance of climate change action than their urban and suburban
counterparts. . .. In both the rural and urban/suburban samples, however, climate
change attitudes were highly polarized along party lines.”).
59.
According to a 2020 study for the Brookings Institution, “[o]f the 100 most
populated cities in the United States, only 45 have established greenhouse gas reduc-
tion targets and corresponding baseline GHG inventories.”
S
AM
M
ARKOLF
, I
N
ˆ
ES
M. L.
A
ZEVEDO
, M
ARK
M
URO
,
AND
D
AVID
G. V
ICTOR
, B
ROOKINGS
, P
LEDGES AND
P
RO-
GRESS
: S
TEPS
T
OWARD
G
REENHOUSE
G
AS
E
MISSIONS
R
EDUCTIONS IN THE
100 L
ARG-
EST
C
ITIES
A
CROSS THE
U
NITED
S
TATES
10
(2020), https://www.brookings.edu/wp-
content/uploads/2020/10/FP_20201022_ghg_pledges_v4.pdf. Furthermore, the study
found that of the 45, only 32 have conducted follow-up GHG inventories to their
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738 LEGISLATION AND PUBLIC POLICY [Vol. 24:725
Second, reducing meat and dairy consumption could benefit city
residents, and potentially city governments, in ways other than reduc-
ing GHG emissions. Such dietary changes might improve individual
health, and these health benefits could be an important motivation for
individuals to change the foods that they eat in ways that would also
benefit the climate. Processed meat (such as hot dogs and deli meats)
is recognized by the World Health Organization as a carcinogen; the
WHO also considers red meat a probable carcinogen.
60
While we hesi-
tate to wade into the contentious field of nutrition science,
61
consum-
ing meat and dairy has been linked to diabetes,
62
high cholesterol,
63
heart disease,
64
and obesity.
65
Moreover, human consumption of ani-
mals also contributes to greater interaction between humans and ani-
mals, which creates more pathways for pathogens to jump from
animals to humans, leading to more epidemics and pandemics, many
baseline inventory and “about two-thirds of [these] cities are currently lagging their
targeted emission levels.” Id. at 18; see also id. at 16.
60. The WHO considers processed meat to be a “Group 1” carcinogen, meaning
that there is “convincing evidence that the agent causes cancer.” The WHO considers
red meat to be a “Group 2A” probable carcinogen, meaning that “a positive associa-
tion has been observed between exposure to the agent and cancer” but that they have
not entirely ruled out other causes. Cancer: Carcinogenicity of the Consumption of
Red Meat and Processed Meat,
W
ORLD
H
EALTH
O
RG
.
(Oct. 26, 2015), https://
www.who.int/news-room/questions-and-answers/item/cancer-carcinogenicity-of-the-
consumption-of-red-meat-and-processed.
61. See generally Jane E. Brody, Confused by Nutrition Research? Sloppy Science
May Be to Blame,
N.Y. T
IMES
(Oct. 29, 2018), https://www.nytimes.com/2018/10/29/
well/live/confused-by-nutrition-research-sloppy-science-may-be-to-blame.html; Jo-
seph S. Alpert, The Great Meat Debate, 133
A
M
. J.
OF
M
ED
. 769
(2020), https://
www.amjmed.com/article/S0002-9343(20)30138-8/fulltext.
62. Neal Barnard, Susan Levin & Caroline Trapp, Meat Consumption as a Risk
Factor for Type 2 Diabetes, 6
N
UTRIENTS
897, 906 (2013), https://doi.org/10.3390/
nu6020897 (“Meat consumption is consistently associated with diabetes risk.”).
63. Nathalie Bergeron, Sally Chiu, Paul T. Williams, Sarah M. King & Ronald M.
Krauss, Effects of Red Meat, White Meat, and Nonmeat Protein Sources on Ather-
ogenic Lipoprotein Measures in the Context of Low Compared with High Saturated
Fat Intake: A Randomized Controlled Trial, 110
A
M
. J.
OF
C
LINICAL
N
UTRITION
24,
29 (2019), https://academic.oup.com/ajcn/article/110/1/24/5494812. (“[C]ompared
with nonmeat as the major protein source, diets containing high amounts of either red
or white meat, and without differences in other macronutrients, result in higher con-
centrations of LDL cholesterol.”).
64. Jennifer
Abbasi, TMAO and Heart Disease: The New Red Meat Risk?, 321
JAMA 2149, 2149-50 (2019), https://pubmed.ncbi.nlm.nih.gov/31116376/ (discussing
evidence that suggests that consumption of red meat increases levels of TMAO, which
increases the risk of heart disease and is a “triple threat” to the cardiovascular
system.).
65.
Y. Wang & M. A. Beydoun, Meat Consumption is Associated with Obesity and
Central Obesity Among US Adults, 33
I
NT
L
J.
OF
O
BESITY
621, 621 (2009), https://
doi.org/10.1038/ijo.2009.45. This “US national cross-sectional data show[s] positive
associations between MC and risk for obesity and central obesity.” Id.
\\jciprod01\productn\N\NYL\24-3\NYL304.txt unknown Seq: 15 13-OCT-22 12:26
2022] INTEGRATING FOOD 739
of which are zoonotic in origin.
66
Human consumption of industrially
raised cattle, which is often fed antibiotics, also contributes to antibi-
otic resistance in humans.
67
Local governments might be interested in developing food poli-
cies that encourage people to improve their health. In the recent past,
local governments have implemented food policies to improve public
health, for example, to reduce obesity, and some of these innovative
local policies, such as banning trans fats, have subsequently been
adopted nationally.
68
A 2021 Washington, D.C. city council commit-
tee report argues that shifting away from “GHG-intensive foods”
could promote “racial equity,”
69
which might help to spur local gov-
ernments in progressive cities to pursue policies promoting changes in
people’s food choices. Also, the public health benefits of reducing
66. Romain Espinosa, Damian Tago & Nicolas Treich, Infectious Diseases and
Meat Production, 76
E
NV
T
R
ES
. E
CON
.
1019, 1020 (2020), https://doi.org/10.1007/
s10640-020-00484-3. (finding that “75% of emerging infectious diseases are zoo-
notic” and that “intensive animal farming creates conditions for the emergence and
amplification of epidemics because of the physical and genetic proximity of the bil-
lions of animals” raised each year).
67. See Christian Lindmeier, Stop Using Antibiotics in Healthy Animals to Prevent
the Spread of Antibiotic Resistance,
W
ORLD
H
EALTH
O
RG
.
(Nov. 7, 2017), https://
www.who.int/news/item/07-11-2017-stop-using-antibiotics-in-healthy-animals-to-pre
vent-the-spread-of-antibiotic-resistance.
68. See generally Maeve E. Gearing & Theresa Anderson, Innovations in NYC
Health & Human Services Policy: Food Policy,
U
RBAN
I
NST
. (2014),
https://
www.urban.org/research/publication/innovations-nyc-health-and-human-services-pol-
icy-food-policy (describing food policies in New York City under Mayor Michael
Bloomberg); Eric Crosbie, Jennifer L. Pomeranz, Kathrine E. Wright, Samantha
Hoeper & Laura Schmidt, State Preemption: An Emerging Threat to Local Sugar-
Sweetened Beverage Taxation, 111
A
M
. J.
OF
P
UB
. H
EALTH
677, 677 (2021), https://
ajph.aphapublications.org/doi/full/10.2105/AJPH.2020.306062. (discussing the imple-
mentation of soda taxes by Navajo Nation and seven U.S. cities between 2014 and
2017); Krishna, supra note 14 (discussing New York City’s ban on trans fats that was
federalized under the Obama Administration); Katrina M. Wyman & Jeff Sebo, Food
Law Policy:
Eric Adams Can Innovate in NYC,
S
TATE
& L
OC
. G
OV
T
L. B
LOG
(Oct.
24, 2021), https://www.sloglaw.org/post/food-law-policy-eric-adams-can-innovate-in-
nyc (describing New York City’s ban on trans fats and mandatory calorie counts,
which were adopted at the federal level).
69.
C
OMM
.
ON THE
T
RANSP
.
AND THE
E
NV
T
, C
OUNCIL OF THE
D
IST
.
OF
C
OLUMBIA
.,
C
OMMITTEE
R
EPORT
: B24-18,
THE
“G
REEN
F
OOD
P
URCHASING
A
MENDMENT
A
CT OF
2021”
4 (2021), https://lims.dccouncil.us/downloads/LIMS/46320/Committee_Report/
B24-0018-Committee_Report1.pdf. Id. at 4 (“[T]he environmental and public health
harms associated with carbon intensive foods are disproportionately borne by Black,
Latinx, and Indigenous communities, who are more likely to be exposed to agricul-
ture-related climate and pollution impacts, as well as to the food insecurity and inequi-
table food access caused by GHG-intensive food production practices.”). See also
C
OMM
.
ON THE
T
RANSP
.
AND THE
E
NV
T
, C
OUNCIL OF THE
D
IST OF
C
OLUMBIA
, C
OM-
MITTEE
R
EPORT
: B24-18,
THE
“G
REEN
F
OOD
P
URCHASING
A
MENDMENT
A
CT OF
2021”
attach. C (2021), https://lims.dccouncil.us/downloads/LIMS/46320/Commit-
tee_Report/B24-0018-Committee_Report1.pdf.
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740 LEGISLATION AND PUBLIC POLICY [Vol. 24:725
meat and dairy consumption might translate into potentially quantifi-
able cost savings for local governments, for example if they operate
health services such as hospitals.
70
One report found that, on a na-
tional level, current consumption trends could cost the United States
“between $197 billion and $289 billion annually by 2050 in health-
and climate-related costs.”
71
Local governments might be motivated to adopt changes to local
food procurement policies not only by the potential health benefits of
adopting GHG friendly food choices but also by a sense of ethical
obligation. City governments purchase a considerable amount of
food,
72
and they might be regarded as having an ethical obligation to
provide the vulnerable people whom they feed healthy plant-based
food options.
73
By serving only unhealthy food to people who turn to
them for food, governments might be contributing to disease.
74
On the
other hand, limiting vulnerable people to only healthy food choices
might be regarded as depriving them of the right to choose the food
they consume that is enjoyed by people with more resources.
75
Re-
70. Additional cost savings may come from the reduced cost of plant-based foods;
for example, the Oakland Unified School District “reduc[ed] its purchases of animal
products by 30 percent and replac[ed] them with plant-based proteins and more fruits
and vegetables,” ultimately saving the school district $42,000 annually.
K
ARI
H
AMERSCHLAG
, A
LICIA
C
ULVER
, C
HLO
¨
E
W
ATERMAN
& B
ECCA
B
ARTHOLOMEW
,
F
RIENDS OF THE
E
ARTH
, M
EAT OF THE
M
ATTER
: A M
UNICIPAL
G
UIDE TO
C
LIMATE
-
F
RIENDLY
F
OOD
P
URCHASING
10 (2017), https://1bps6437gg8c169i0y1drtgz-
wpengine.netdna-ssl.com/wp-content/uploads/2017/12/MunicipalRe-
port_ko_120117_v2-1.pdf#page=10&zoom=100,0,0.
71.
M
INELLI ET AL
.
, supra note 12, at 8 (citing Lauren Cassani Davis, The Eco-
nomic Case for Worldwide Vegetarianism,
T
HE
A
TLANTIC
(Mar. 28, 2016), citing
M
ARCO
S
PRINGMAN ET AL
., A
NALYSIS AND
V
ALUATION OF THE
H
EALTH AND
C
LIMATE
C
HANGE
C
OBENEFITS OF
D
IETARY
C
HANGE
(2016)).
72. See infra note 103 and accompanying text (referring to New York City and its
agencies spending $500 million a year on food).
73. WHO Urges Governments to Promote Healthy Food in Public Facilities,
W
ORLD
H
EALTH
O
RG
.
(Jan. 12, 2021), https://www.who.int/news/item/12-01-2021-
who-urges-governments-to-promote-healthy-food-in-public-facilities. (“Public places
that serve the entire community, including our most vulnerable populations, must be
places where healthy diets are promoted not discouraged. . . no public funds should be
spent on food contributing to unhealthy diets”).
74. Transcript: Ezra Klein Interviews Eric Adams,
N.Y. T
IMES
(Oct. 1, 2021),
https://www.nytimes.com/2021/10/01/podcasts/transcript-ezra-klein-interviews-eric-
adams.html (“If a person is homeless, if a person is on some form of food pantry
allotment, they go to the government because they don’t have any other choices. So
it’s almost a betrayal when you know someone has no other choice but to eat what
you give them, and you’re giving them food that feeds their chronic diseases.”). See
Chenyang, supra note 10, at 10360 (“[T]he government influences private food
choice . . . by shaping food environments for captive customers.”).
75. See, e.g., Kimberley Leonard, The Great Government Takeover,
U.S. N
EWS
&
W
ORLD
R
EP
.
(June 5, 2015) (quoting people who criticize governmental efforts to
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2022] INTEGRATING FOOD 741
gardless, vulnerable people who rely on governments for food should
at least have similar opportunities to eat healthier food as people who
do not depend on public assistance for food.
Third, cities are generally not major producers of food, and so
meat and dairy producers are not likely to be politically powerful in-
terest groups in city politics. As Professor Jonathan Rosenbloom em-
phasizes in an important article on how local governments calculate
city GHG emissions, most American cities import most of their food
and are not major sites of food production.
76
Generally located outside
of cities, large producers of meat and dairy products are unlikely to
wield significant political power in city politics, leaving city politi-
cians more leeway to adopt policies that reduce demand for meat and
dairy products than politicians representing jurisdictions with signifi-
cant food production industries.
77
However, a few important caveats
are in order. There may be distributors, retailers, and artisanal produc-
ers of meat and dairy foods within cities who might oppose local ef-
forts to reduce meat and dairy consumption, especially if these firms
cannot easily transition to selling more plant-based foods. These con-
stituencies might amplify the voices of consumers concerned about
local governments seeking to influence people’s food choices. Fur-
thermore, rural meat and dairy producers—alone, or with assistance
from urban interest groups—might have the leverage to have states
preempt local efforts to reduce meat and dairy consumption.
78
State
preemption might be an especially potent threat to Democrat-con-
trolled cities in states where Republicans predominate at the state level
because of the Republican leanings of many rural state voters.
Fourth, city leaders might think of increasing consumption of
plant-based foods—a likely corollary to reducing meat and dairy con-
sumption—as a local economic development strategy. Local govern-
ments and others have become increasingly interested in promoting
urban agriculture.
79
Such agriculture encompasses a wide range of ac-
influence food choices of people generally, not specifically the people to which gov-
ernments are supplying food).
76. Jonathan
Rosenbloom, Outsourced Emissions: Why Local Governments Should
Track and Measure Consumption-Based Greenhouse Gases, 92
U
NIV
.
OF
C
OLO
. L.
R
EV
.
451, 486 (2021).
77. Id.
78.
On state preemption of local food policies, see, e.g., Jennifer L. Pomeranz, Les-
lie Zellers, Michael Bare, and Mark Pertschuk, State Preemption of Food and Nutri-
tion Policies and Litigation: Undermining Government’s Role in Public Health, 56
A
M
. J. O
F
P
REVENTIVE
M
ED
.
47 (2019), https://pubmed.ncbi.nlm.nih.gov/30467091/.
79. Mindy
Bridges, Growing Interest in Urban Agriculture,
N
AT
L
C
ONF
.
OF
S
TATE
L
EGIS
.
(Sept. 2018), https://www.ncsl.org/research/environment-and-natural-resources
/growing-interest-in-urban-agriculture.aspx (“States, along with federal and local gov-
\\jciprod01\productn\N\NYL\24-3\NYL304.txt unknown Seq: 18 13-OCT-22 12:26
742 LEGISLATION AND PUBLIC POLICY [Vol. 24:725
tivities—from community gardens to for-profit outfits growing lettuce
in greenhouses—which generally have in common growing plants, not
raising cattle for human consumption as meat and dairy.
80
Reductions
in consumption of meat and dairy products might create more demand
for the products of for-profit urban agriculture firms growing plant-
based food or new city-based food technology companies. We empha-
size, though, that it is unlikely that cities would ever feed themselves
entirely from produce grown within their borders.
81
In combination, the four arguments discussed above suggest that
the cities that might be most open to thinking of climate mitigation
policy as encompassing food policy would have a number of charac-
teristics. They would be politically progressive cities already pursuing
climate mitigation with organized constituencies interested in public
health. They would have existing in-city for-profit producers, distribu-
tors, and retailers of plant-based foods with an interest in growing
their local businesses. These cities also probably would not be located
in states where large-scale agricultural producers exert sufficient polit-
ical power at the state level to be able to persuade enough state-level
elected officials to preempt city policy experiments.
III.
A M
ODEST
P
ROPOSAL
: E
STIMATING
GHG E
MISSIONS
F
ROM
C
ITY
G
OVERNMENT
P
ROCURED
F
OOD
Assuming there is a political constituency at the local level to
reduce GHG emissions from food (and consequentially to improve
public health), how might local governments integrate food policy into
climate policy? As mentioned earlier, there are many levers available
to local governments to reduce GHG emissions from food, including
through changes in the foods that local governments and other local
institutions, such as schools, purchase; subsidies that reduce the cost
ernments, are creating food policy councils, task forces and other bodies to bring
together the producers, processors, distributors, sellers and consumers on which local
food systems rely.”); see also Jonah Allon, The New Agrarian Economy Report on
Expanding Urban Agriculture in NYC,
A
GRITECTURE
(Feb. 22, 2021), https://
www.agritecture.com/blog/2021/2/22/the-new-agrarian-economy-report-on-ex-
panding-urban-agriculture-in-nyc.
80.
See the USDA description of urban agriculture.
U.S. D
EP
TOF
A
GRIC
.,
Urban
Agriculture Grants and Engagement Opportunities,
U.S. D
EP
TOF
A
GRIC
.
, https://
www.farmers.gov/your-business/urban/opportunities (last visited Feb. 15, 2022).
81. See, e.g., Wylie Goodman & Jennifer Minner, Will the Urban Agricultural
Revolution Be Vertical and Soilless? A Case Study of Controlled Environment Agri-
culture in New York City, 83
L
AND
U
SE
P
OL
Y
160, 167–69 (2019)
(the food pro-
duced by commercial urban farming operations in New York City is likely mostly
expensive leafy greens).
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2022] INTEGRATING FOOD 743
of individuals buying fruits and vegetables; and the provision of infor-
mation to the public about the GHG emissions from different food-
stuffs.
82
This Article advocates that local governments estimate GHG
emissions from city-government procured food as one step in incorpo-
rating food policy into climate policy.
A. Existing Local GHG Emission Inventories and Food
Local governments in over 40 large cities in the U.S. have con-
ducted inventories of the GHG emissions from their communities.
83
Professor Rosenbloom’s Article on how local governments calculate
local GHG emissions emphasizes that most local governments cur-
rently count only the emissions that occur within their borders (often
called scope 1 emissions
84
), plus emissions from generating electricity
even if that electricity is generated beyond the city’s borders (often
called scope 2 emissions
85
). The resulting “sector-based” inventory fo-
cusing on GHGs that are produced in the city is consistent with the
way in which national emissions are tracked, as national inventories
count GHGs from production within the country plus imported elec-
tricity.
86
However, this standard sector-based inventory of local GHG
emissions significantly undercounts “scope 3 emissions,” which in-
clude the GHGs released in producing the products that cities import
for local consumption,
87
of which food is a prime example. Under the
standard sector-based inventories, buildings are the top local source of
GHG emissions, except in a few places where transportation is the
leading source and buildings second; food does not appear as a major
source at all.
88
82.
M
INELLI ET AL
.
., supra note 12 (outlining a toolkit of measures that local gov-
ernments can take to reduce meat consumption and thereby reduce GHG emissions
from food, and improve public health and animal welfare).
83.
M
ARKOLF ET AL
.,
supra note
59.
84. Rosenbloom, supra note 76, at 464 (“Scope 1 emissions come directly from
sources in the local jurisdiction (typically including fossil fuel combustion).”).
85. Id. (“Scope 2 emissions result indirectly from purchased electricity. Scope 2
emissions are ‘indirect’ because they occur outside the locality and ‘physically occur
at the facility where electricity is generated.’”) (excerpting AECOM, City of Chicago
Greenhouse Gas Inventory Report: Calendar Year 2015 7 (2017)).
86.
B
ULKELEY
, supra note 9, at 47–49.
87. Rosenbloom, supra note 76, at 464-465. See also
B
ULKELEY
, supra note 9, at
117 (inventory focused on Scope 1 emissions “excludes the emissions implicated in
the consumption of goods and services within the city”). Rosenbloom, supra note 76,
at 464–65 (“Scope 3 emissions are indirect emissions other than Scope 2 emissions
(these are typically the upstream lifecycle emissions included in a Consumption-based
Inventory, such as waste disposal). Scope 3 emissions . . . stem[
] from sources and
activities outside a locality’s boundary but are a consequence of local activities.”).
88. Rosenbloom, supra note 76, at 465.
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744 LEGISLATION AND PUBLIC POLICY [Vol. 24:725
B. Adding Consumption-Based GHG Emission Inventories?
To underscore how cities contribute to GHG emissions through
the products that they consume but do not make within their borders,
such as food, cities might undertake consumption-based accountings
of GHG emissions. Indeed, Professor Rosenbloom recommends that
cities perform consumption-based emissions inventories (CBEIs) that
include GHGs released in producing, transporting, and using the prod-
ucts that cities import, in addition to the standard sector-based inven-
tory of local GHG emissions.
89
To date, only a small number of local
governments have undertaken CBEIs. Rosenbloom identifies three—
San Francisco, California; Multnomah County, Oregon; and King
County, Washington—though other sources suggest that a few more
local governments in the U.S. (and abroad) have conducted CBEIs.
90
Existing CBEIs suggest that the diffusion of consumption-based ac-
counting would highlight that food is a significant way through which
89. Rosenbloom, supra note 76. Other advocates of cities performing consump-
tion-based emissions inventories include C40, an important organization of cities
committed to addressing climate change. It recommends that local governments per-
form consumption-based accountings of emissions “if possible”. C40 Cities Climate
Leadership Group, How to Cut Your City’s Consumption-Based Emissions,
C40
K
NOWLEDGE
(Jan. 2022), https://www.c40knowledgehub.org/s/article/How-to-cut-
your-city-s-consumption-based-emissions?language=EN_US. (“Conduct a consump-
tion-based emissions inventory (CBEI), if possible.”). In 2022, as this Article was in
publication, C40, New York City and London announced an initiative to undertake
consumption-based emissions inventories for London and New York City, with the
assistance of American Express. C40, Press Release, C40 announces collaboration to
map consumption-based emissions in two of the world’s biggest cities (May 9, 2022),
https://www.c40.org/news/amex-map-consumption-emissions-london-new-york-city.
90. Rosenbloom, supra note 76, at 457 n.13 (“San Francisco, California, Multno-
mah County, Oregon [which includes Portland], and King County, Washington State
[which includes Seattle].”). Other local governments identified as having done CBEIs
include Eugene, Oregon; Minneapolis, Minnesota; London, UK; Gothenburg, Swe-
den. Derik Broekhoff, Peter Erickson & Georgia Piggot, Estimating Consumption-
Based Greenhouse Gas Emissions at the City Scale,
S
TOCKHOLM
E
NV
T
I
NST
.
12
(2019), https://www.sei.org/wp-content/uploads/2019/03/estimating-consumption-
based-greenhouse-gas-emissions.pdf.; Creating a CBEI for Your City
,
Urb. Sus-
tainability Dirs. Network, https://sustainableconsumption.usdn.org/climate/cbei-guide
book/estimating-emissions. (last visited Feb. 15, 2022);
C40 K
NOWLEDGE
, supra note
89. See also
C
HRIS
J
ONES
, D
AVID
B
URCH
& J
ACKIE
W
INKEL
,B
AY
A
REA
Q
UALITY
M
ANAGEMENT
D
ISTRICT
C
ONSUMPTION
-
BASED
R
EGIONAL
GHG E
MISSIONS
I
NVEN-
TORY
(2015), https://coolclimate.berkeley.edu/files2/BAAQMD-Oct-7-2015.pdf. C40
also produced a major report based on consumption-based accountings it did for mem-
ber cities.
C40 C
ITIES
C
ONSUMPTION
-
BASED
GHG E
MISSIONS OF
C40 C
ITIES
(2018),
https://cdn.locomotive.works/sites/5ab410c8a2f42204838f797e/content_entry5ab
410fb74c4833febe6c81a/5ad4c0c274c4837def5d3b91/files/C40_GHGE-Report_
040518.pdf?1540555698. As previously noted, C40 is adding to its past efforts by
undertaking an initiative to develop consumption-based emissions inventories for
London and New York City. Supra note 89.
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2022] INTEGRATING FOOD 745
cities contribute to GHG emissions. Food and beverages are consist-
ently the second largest source of GHG emissions in the three local
U.S. jurisdictions that Rosenbloom identifies as having done CBEIs.
91
The consumption-based accountings that have been done to date
seem to rely on broadly similar methodologies, although there is no
protocol for undertaking local CBEIs that is as widely accepted by
local governments as the Global Protocol for Community-Scale
Greenhouse Gas Inventories used for the standard sector-based inven-
tories.
92
The CBEIs are based on estimates of consumer spending and
GHG emissions for products, often drawn from national averages. In
broad terms, the accountings start with national estimates of consumer
spending on many products, which are downscaled to reflect local
characteristics that influence consumption, such as incomes in the lo-
cality.
93
The accountings are not based on actual data about the
91. On food and beverages as the number two sources of emissions, see Rosen-
bloom, supra note 76, at 47374. But see
C
HRISTOPHER
M. J
ONES
,
C
ONSUMPTION
B
ASED
G
REENHOUSE
G
AS
I
NVENTORY OF
S
AN
F
RANCISCO FROM
1990
TO
2015 7
(2020), https://escholarship.org/uc/item/4k19r6z7 (“In 2015, [in San Francisco,] the
services category (24%) was the largest contributor to household carbon footprints,
followed by transportation (23%), food (21%), goods (16%), and housing (16%).”);
Eugene’s Consumption Emissions, in
E
UGENE
S
C
OMMUNITY
C
LIMATE
A
CTION
P
LAN
2.0: A R
OADMAP FOR
E
UGENE
S
C
LIMATE
J
OURNEY
, 65, 68 (2020), https://
www.eugene-or.gov/ImageRepository/Document?documentId=55986 (“The food and
beverages consumed in Eugene represent the largest source (16%) of community con-
sumption-based emissions.”). See also
A
MELIA
L
INN
,
C
LIMATE
-F
RIENDLY
D
IETS
: H
OW
C
ITIES
C
AN
C
UT
E
MISSIONS AND
I
MPROVE
P
UBLIC
H
EALTH
3-4 (2018), https://guarini
center.org/wp-content/uploads/2018/07/Linn-Climate-Friendly-Diets-FINAL.pdf
92.
The Global Protocol for Community-Scale Greenhouse Gas Inventories seems
to be the dominant protocol that cities use in undertaking sector-based inventories.
W
EE
K
EAN
F
ONG
, G
REENHOUSE
G
AS
P
ROTOCOL
,
G
LOBAL
P
ROTOCOL FOR
C
OMMU-
NITY
-S
CALE
G
REENHOUSE
G
AS
I
NVENTORIES
: A
N
A
CCOUNTING AND
R
EPORTING
S
TAN-
DARD FOR
C
ITIES
(2021), https://ghgprotocol.org/greenhouse-gas-protocol-accounting-
reporting-standard-cities. See also Rosenbloom, supra note 76, at 462 (GPC is the
basis for “numerous local Sector-based Inventories”). The Global Protocol was devel-
oped by the World Resources Institute, ICLEI and C40. Id. On the history of the
standardization of approaches to measuring local GHG emissions, see, e.g.,
B
ULKELEY
, supra note 9, at 47–54, 11012. On the lack of a standard protocol for
measuring GHG emissions from local consumption, see C40 Knowledge, supra note
89 (“While cities’ sector-based emissions inventories are supported by the Global
Protocol standardised framework, there is not yet an equivalent standardised frame-
work for assessing consumption-based emissions.”). But see “Scope 3 Evaluator.”
G
REENHOUSE
G
AS
P
ROTOCOL
,C
ORPORATE
V
ALUE
C
HAIN
(S
COPE
3) A
CCOUNTING AND
R
EPORTING
S
TANDARD
(2014), https://ghgprotocol.org/standards/scope-3-standard.
93.
J
ONES
, supra note 91, at 13 (“Our methodology starts with detailed results from
the Consumer Expenditures Survey (CE) for the average U.S. households for the years
1990 to 2015, aggregated into a single file . . . The CE, conducted by the Bureau of
Labor Statistics (BLS), is the only annual national survey of household consumption
in the United States.”); Id. at 36
–81; see also
B
ROEKHOFF ET AL
.,
supra note 93 at 11
(The CoolClimate “tool estimates locally specific patterns of consumer spending,
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746 LEGISLATION AND PUBLIC POLICY [Vol. 24:725
amount of these products purchased in the locality whose consumption
is being inventoried. For example, the estimates of how much meat
and clothing are consumed in a city are not based on counting the
actual volume of meat and clothing bought in stores or on the internet
in the city; instead, the estimates are derived from national level
surveys of household spending adjusted to reflect local characteristics,
such as income levels, that affect consumption.
94
GHG emissions fac-
tors are estimated for the lifecycle of the consumer products in the
inventory (such as for the production, transportation, and use of a
product). Emissions factors are the quantity of GHG emissions per
dollar of spending on a product.
95
The emissions factors used in local
CBEIs seem to be based on national level data about emissions, al-
though emissions factors for some products may reflect the GHG
emissions associated with a product in the locality.
96
National GHG
emission factors likely elide important differences across jurisdic-
tions.
97
For example, if there are far fewer GHGs emitted in producing
transportation, and household energy use (using “downscaled” national data) and
combines this with national input-output analysis and fuel emissions factors from the
EPA and other sources to estimate GHG emissions“). But see id. at 11 (“One compro-
mise, adopted in a number of cities, is to pursue a hybrid approach that combines
different methods to produce a comprehensive CBEI with local resolution for some
consumption categories. For example, the ecoCity Footprint Tool—applied to Van-
couver, B.C. and other Canadian cities (as well as at least one US city, Iowa City)—
uses local activity (utility bills, transportation surveys) and waste composition data
when available. But it supplements this with national data or archetypal types of con-
sumption to fill gaps in local data.”). Rosenbloom mentions that consumption-based
accountings are more difficult to conduct than sector-based inventories and “tend to
rely on data trends as opposed to actual emissions.” Rosenbloom, supra note 76, at
490.
94.
UC Berkeley’s CoolClimate Network, which has done CBEIs for San Francisco
and the Bay Area Air Quality Management District, among others, seems to have the
most refined approach to CBEI. The CoolClimate Network at UC Berkeley and the
Stockholm Environment Institute both rely on national level data about consumption
that they adjust to reflect local characteristics, and GHG emission factors for the pur-
chased goods and services from national sources. The two approaches differ princi-
pally in that CoolClimate refines the national level consumption data using six factors,
while the Stockholm Environment Institute refines it using only one factor (income).
B
ROEKHOFF ET AL
.,
supra note 90;
C
OOL
C
LIMATE
N
ETWORK
, https://coolcli-
mate.berkeley.edu (last visited Apr. 24, 2022);
J
ONES
, supra note 91. CoolClimate
compares the two approaches here:
J
ONES
, supra note 91, at 3639.
95.
J
ONES
, supra note 90, at 46 (“CEDA [Comprehensive Environmental Data
Archive] produces emission factors as kg CO2 equivalent per dollar of sector output
in producer or purchaser prices.”).
96.
J
ONES
, supra note 91, at 17 (“We use local data on emissions wherever possible
so long as they correspond with a consumption-based approach.”).
97.
B
ROEKHOFF ET AL
.,
supra note 90; Estimating Emissions, USDN, https://sus-
tainableconsumption.usdn.org/climate/cbei-guidebook/estimating-emissions (last vis-
ited Feb. 15, 2022).
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2022] INTEGRATING FOOD 747
the meat consumed in one city compared with another, using national
estimates of GHGs per dollar spent on meat will not recognize that
one city’s emissions from meat are less than another’s per dollar
spent.
CBEIs attribute “GHG emissions to the final consumers of . . .
goods and services, rather than to the original producers of those GHG
emissions.”
98
Thus, CBEIs highlight the ways in which communities
contribute to climate change by consuming products made outside
their borders, such as food.
99
In so doing, CBEIs complement tradi-
tional sector-based inventories which focus on the emissions produced
within the city’s borders.
100
Local preparation of CBEIs likely would help to make the case
for adopting food policies to reduce GHG emissions because these
accountings would highlight the GHG emissions that come from pro-
ducing the foods—especially meat and dairy productsconsumed in
cities. Nonetheless, there are practical disadvantages to CBEIs which
may inhibit many local governments from pursuing CBEIs until these
issues are addressed.
First, as already mentioned, there is no standard protocol for local
governments to use to prepare CBEIs. This means that local govern-
ments, which often have limited resources to devote to climate change
policy, may need to hire an external contractor to help them prepare
the CBEI.
101
Moreover, the absence of an accepted protocol means
that local government officials may feel that they have little guidance
in setting standards for the preparation of a CBEI. The lack of an
established protocol is by no means an insurmountable barrier to the
diffusion of CBEIs at the local level, but it is likely a reason why
CBEIs have not yet caught on at the local level.
98.
C40 C
ITIES
,
C
ONSUMPTION
-
BASED
GHG E
MISSIONS OF
C40 C
ITIES
(2018),
https://cdn.locomotive.works/sites/5ab410c8a2f42204838f797e/content_entry
5ab410fb74c4833febe6c81a/5ad4c0c274c4837def5d3b91/files/C40_GHGE-Report_
040518.pdf?1540555698.
99.
J
ONES
, supra note 91, at 5.
100. Id.
101.
Many cities—including some of the most populous in the U.S.—do not seem to
undertake even sector-based inventories on an annual basis.
M
ARKOLF ET AL
.,
supra
note 59, at 5 (“Of the 45 cities analyzed in this report, none have GHG inventories for
years 2018 or 2019, and only two have GHG inventories for 2017 (an additional 10
have inventories for 2016). Similarly, the lower rate of activity among the smaller
cities (only six of the climate action plans came from among the group of cities with
the 76th- to 100th-largest populations) suggests the challenges that resource con-
straints can pose for developing GHG reduction targets and related emissions invento-
ries.”). On the additional resources that CBEIs would demand of local governments,
see Rosenbloom, supra note 76, at 490 (“[C]onsumption-based Inventories are more
complicated and more expensive to assemble.”).
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748 LEGISLATION AND PUBLIC POLICY [Vol. 24:725
Second, many local governments may be reluctant to undertake
CBEIs at this point because the current methodologies for CBEIs can-
not easily be used to monitor the impacts of local government policy
efforts to reduce emissions from consumption. As discussed above,
the key inputs to CBEIs, such as the estimates of consumer spending
and the GHG emissions associated with that spending, are often based
on national level estimates, not actual data about local consumption or
emissions from products consumed locally. Thus, if a local govern-
ment were to adopt policies to discourage consumption of foods
whose production releases many GHGs, the resultant reductions in
emissions attributable to the locality would not likely be captured in
the CBEI. In short, the local government would not be able to esti-
mate—or show its constituentshow much its policies are contribut-
ing to reducing GHGs. The national estimates of consumer spending
and emissions that are the basis for estimating GHG emissions from
local consumption are not sufficiently granular to reflect changes over
time in consumption due to local government policies.
102
Again, this
practical disadvantage with CBEIs could be addressed through meth-
odological innovations in consumption-based accounting. But for
now, the inability of local governments to use CBEIs to track the im-
pacts of policies that they adopt is likely a factor discouraging local
preparation of CBEIs.
C. Estimating GHG Emissions From City-Government Procured
Food
While it is likely desirable for cities to undertake CBEIs, we en-
dorse a more modest step in this Article: cities (with the resources)
should estimate the GHG emissions from the city government’s pro-
curement of food. This is a more modest endeavor than undertaking a
CBEI because it involves estimating GHG emissions only from one
product consumed in cities: food. Also, the city government would
estimate only the GHG emissions from the food procured by the city
government and local government institutions such as schools, hospi-
tals, and jails—not the emissions from the food that city residents
purchase. By contrast, a comprehensive CBEI would estimate the
GHG emissions from food as well as other products consumed in cit-
ies, and from products consumed by the community, not just the city
government.
102. However, San Francisco’s 2020 consumption-based GHG inventory suggests
that there have been methodological advances in consumption-based accounting.
J
ONES
, supra note 91. It was done by Christopher Jones of CoolClimate Network at
UC Berkeley.
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2022] INTEGRATING FOOD 749
City governments and their agencies are major purchasers of
food, which underscores the value of trying to count the GHG emis-
sions from their food purchases. For example, New York City and its
agencies spend “a combined $500 million on food each year.”
103
Ac-
cording to the Center for Good Food Purchasing, “if NYC shifted just
15 percent of meat purchases to plant proteins, it would decrease an-
nual greenhouse emissions by over 100 million pounds of carbon-di-
oxide equivalent—the same as taking nearly 10,000 passenger
vehicles off the road.”
104
Under the proposal, cities would estimate the GHG emissions
from the food that they purchase based on how much they spend on
different categories of food, or the volumes purchased of different
food categories.
105
We recognize the difficulties that cities might en-
counter in gathering data about how much money they are spending
on different categories of food or how much they are buying by
weight of different categories, especially the first time that they com-
pile this information. For example, food procurement in New York
City is highly decentralized, with multiple agencies, some of which
are not governmental entities, purchasing the food for which the city
government pays.
106
A city would need to develop the capacity to
track spending on different categories of food, or the volumes of dif-
ferent foods purchased, perhaps with the assistance of its suppliers.
To make the data gathering more manageable, the city govern-
ment might focus on estimating spending or volumes purchased of
only a subset of the food products for which the city pays, such as the
food products that are likely to be the largest food sources of GHG
103. Held, supra note 13.
104. Id.
105. See, e.g.,
R
ICHARD
W
AITE
, D
ANIEL
V
ENNARD
& G
ERARD
P
OZZI
, W
ORLD
R
ES
.
I
NST
., T
RACKING
P
ROGRESS
T
OWARD THE
C
OOL
F
OOD
P
LEDGE
: S
ETTING
C
LIMATE
T
ARGETS
, T
RACKING
M
ETRICS
, U
SING THE
C
OOL
F
OOD
C
ALCULATOR
,
AND
R
ELATED
G
UIDANCE FOR
P
LEDGE
S
IGNATORIES
25 (2019), https://files.wri.org/d8/s3fs-public/
tracking-progress-toward-cool-food-pledge.pdf (explaining how estimates of weight
can be derived from spending estimates).
106.
New York City contracts with many different entities, such as centers that serve
senior citizens, to provide a range of services, including food, and these entities
purchase the food for which the city’s funding pays. Held, supra note 13. This frag-
mentation makes it hard for the city government to acquire data about how much it is
spending on food.
M
AYOR
S
O
FF
.
OF
F
OOD
P
OL
Y
,
C
ITYWIDE
G
OALS
& S
TRATEGY FOR
THE
I
MPLEMENTATION OF
G
OOD
F
OOD
P
URCHASING
2, 4, 5 (2021), https://
www1.nyc.gov/assets/foodpolicy/downloads/pdf/GFP-Citywide-Goals-Strategy.pdf.
The city has “data on the source of the food . . . for less than half of the total
purchases due to gaps in traceability.” Held, supra note 13.
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750 LEGISLATION AND PUBLIC POLICY [Vol. 24:725
emissions, like meat and dairy products.
107
Another way of reducing
the information gathering would be to limit the agencies whose food
purchases were counted to a subset of city agencies, such as the
agency (or agencies) spending the most on food in the city. For exam-
ple, in New York City, the Department of Education accounts for
$200 million out of the $500 million that the city government spends
on food.
108
To estimate the GHG emissions from the city’s food procure-
ment, the city would apply GHG emissions factors to the estimates of
the city’s spending on different food categories. There are existing
data sets of GHG emissions factors for different categories of food.
109
These data sets estimate the GHG emissions associated with different
stages of the “life” of different food categories (such as the GHG
emissions from the production of the food, its transportation, etc.).
110
While there is no established protocol for local government
CBEIs, the World Resources Institute (WRI), a widely respected envi-
ronmental nonprofit, has developed the “Cool Food Calculator” that
cities can use to estimate the GHG emissions from their purchases of
different categories of foods.
111
Under the organization’s “Cool Food”
pledge, signatories commit to reducing their emissions from the food
that they purchase by 25% by 2030, a target in line with the Paris
Agreement.
112
Signatories are required to annually report, by volume,
their purchases of certain categories of foods whose production gener-
ally generates high levels of GHG emissions.
113
Drawing on published
data, WRI has incorporated into its Cool Food Calculator emissions
factors for different food categories.
114
These emissions factors (de-
107. The Cool Food Pledge, administered by the World Resources Institute, provides
a source of information about which foods are likely leading sources of GHG emis-
sions. The Pledge requires that signatories report the volume of a select number of
food products that the signatory buys each year and maintains that the food items for
which purchase volumes must be reported “collectively tend to account for more than
80 percent of signatories’ total food-related agricultural supply chain emissions, land
use, and carbon opportunity costs.”
W
AITE
,
ET AL
.,
supra note 106 at 11. Existing
consumption-based inventories also might be consulted to determine the food prod-
ucts whose emissions should be counted. See Rosenbloom, supra note 76 (identifying
three existing local government consumption-based GHG accountings).
108. Held, supra note 13; see
M
AYOR
S
O
FF
.
OF
F
OOD
P
OL
Y
,
supra note 105, at 5.
109.
W
AITE ET AL
., supra note 105 at 13 (Table 2: Comparison of Three Recent Life
Cycle Meta-analyses, Including the Data Set in the Cool Food Calculator).
110. Id.
111.
W
AITE ET AL
., supra note 105.
112. Pledge,
C
OOL
F
OOD
, https://coolfood.org/pledge/ (last visited Feb. 15, 2022).
113.
W
AITE ET AL
.,
supra note 105, at 11 (Box 3: Reporting Food Purchases By
Type).
114. Id. at 12–13.
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2022] INTEGRATING FOOD 751
nominated in GHGs per kg of food category) are based on GHG emis-
sions from the production, “transport, processing, packaging, and
upstream losses of the supply chain” of different foods in different
regions of the world.
115
Under some conditions, signatories may rely
on more granular country-level data instead of the regional data about
emissions factors in the Cool Food Calculator.
116
The Cool Food Cal-
culator “estimates [GHG emissions] for each food type and totals
them.”
117
WRI does not make public the GHG emissions from indi-
vidual signatories’ food purchases,
118
but there does not appear to be
any obstacle to cities making public the calculator’s estimates of the
emissions from the signatories’ food purchases and changes over time
in these emissions. Indeed, as this Article was in publication, New
York City published online estimates calculated by WRI of the GHG
emissions from food purchased by six City agencies in 2019.
119
The Cool Food Pledge and the Cool Food Calculator were not
designed to enable cities in particular to track the GHG emissions
from the food that they procure, and most of the signatories to the
Pledge are not cities. As of this writing, New York City is the only
U.S. city to have signed the Pledge, although some cities from other
countries have signed.
120
As mentioned above, Washington, D.C.’s
legislated commitment to reduce emissions from its food procurement,
is in line with the Cool Food Pledge.
121
Washington, D.C. is also leg-
islatively required to adopt a mechanism for tracking the GHG emis-
sions from its food procurement, and it potentially could use the Cool
Food Calculator, which would help to build momentum among cities
for the tool.
122
To use the Cool Food Calculator, cities would first
115. Id. at 13 (Table 2 — Comparison of Three Recent Life Cycle Meta-analyses,
Including the Data Set in the Cool Food Calculator) (note a); see also id. at 12, 13.
116. Id. at 13.
117. Id. at 12.
118. Id. at 6.
119.
NYC Food Policy, Dashboard: NYC Food Purchasing at a Glance, https://
www1.nyc.gov/site/foodpolicy/good-food-purchasing/dashboard.page (The Carbon
FootPrint of the City’s Food Purchases).
120.
C
OOL
F
OOD
, https://coolfood.org/pledge/ (list of signatories).
121. Supra note 16 and accompanying text.
122. In 2021, Washington, D.C. adopted the Green Food Purchasing Amendment
Act, which instructs the City to reduce the greenhouse gas emissions from food that
the City purchases by 25% by 2030 from a “baseline assessment” established by the
Department of Energy and the Environment (DOEE).
D.C. C
ODE
§ 8-151.09b(d)
(2022). The legislation also directs the DOEE to “adopt a methodology, . . . for the
District to estimate, to the extent practicable, the greenhouse gas emissions that occur
through the life cycle of food and beverages purchased by covered agencies, including
by third-party vendors that provide food and beverages on behalf of the covered agen-
cies.”
D.C. C
ODE
§ 8-151.09b(a)(1) (2022). Lehner and Rosenberg suggest that bills
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752 LEGISLATION AND PUBLIC POLICY [Vol. 24:725
need to prepare a food purchase database, logging the quantity of food
purchased by weight across a set of food-item categories (e.g. beef,
lamb, poultry, milk, etc.).
123
Some cities may already record this in-
formation. Others, however, may need to obtain this information from
“food service providers who, in turn, may need to obtain data from
their vendors and suppliers for certain items.”
124
For cities without
this data at hand, the WRI recommends starting the process of data
collection by focusing on the most high-emissions food, such as meat
and dairy products.
125
Data must be recorded in units of weight (e.g.
kilograms, pounds) in order to be used in the Cool Food Calculator;
thus, cities may need to establish protocols for converting from met-
rics such as gallons, cases, and dollars to units of weight.
126
The big-
gest hurdle for cities in using the Cool Food Calculator will likely be
setting up a system for collecting their food purchase data in a usable
format. However, once a system is in place, using the Cool Food Cal-
culator should be a relatively simple way for cities to “track progress
towards emissions reduction targets.”
127
The existence of the Cool Food Calculator means that there is
already a tool, produced and maintained by a prominent environmen-
tal organization with name brand recognition in local government cir-
cles, that can be used to estimate GHG emissions from local food
procurement. Given the small number of municipal government signa-
tories to the Cool Food Pledge, it is premature to describe the calcula-
tor as the accepted protocol for estimating these emissions. Moreover,
the calculator is not perfect; for example, it likely would produce more
accurate estimates of emissions if the emissions factors were more
granular and not based on emissions in different regions of the
world.
128
Additionally, recent research has found that using the con-
ventional carbon dioxide equivalent metrics to measure the global
similar to the legislation that passed in Washington, D.C. have been introduced in
other jurisdictions.
L
EHNER
& R
OSENBERG
, supra note 2, at 235.
123.
W
AITE ET AL
.
, supra note 105.
124. Id. Note that strategies for “obtaining food purchase data from supply chain
partners” are listed in Table A-1.
125. Id. at 24. WRI suggests that focusing efforts on high-emitting foods will allow
cities “to capture the majority of their food-related emissions while keeping the data
collection workload manageable.” Id.
126. Id. at 25. It would be beneficial to collaborate with supply chain partners in
developing a “practicable way for tracking the data over time,” so that data collection
in the proper units becomes an integrated part of the procurement protocol. Id. at 24.
The WRI has resources available to help cities with these conversions.
127. Id. at 1.
128.
The calculator’s creators seem to recognize this limitation.
W
AITE ET AL
.
,
supra note 105, at 13.
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2022] INTEGRATING FOOD 753
warming potential of emissions “can misrepresent the impact of short-
lived climate pollutants—which, importantly for agriculture, include
methane—on future long-term impacts on global temperature.”
129
Nonetheless, the existence of the calculator means that local govern-
ments are not left to their own devices to the same extent as they are in
attempting to undertake CBEIs.
130
129.
W
AITE ET AL
. supra note 105 at 8.
130. Even if the Cool Food Pledge and Calculator do not emerge as a standard for
estimating GHG emissions from local government food procurement, other tools may
develop to enable these estimates to be made. Local governments and institutions
already have been undertaking analyses of the GHG emissions from their procure-
ment, including, but not limited to, their procurement of food. These analyses are
sometimes called “supply-chain analyses” because they analyze the GHG emissions
from the products that local governments are consuming; these analyses suggest the
feasibility of the supply chain analysis of food paid for by a city. Id. See also, e.g.,
T
RUCOST
,
S
USTAINABLE
S
UPPLY
C
HAIN
A
NALYSIS
: E
XECUTIVE
S
UMMARY
R
EPORT
(2016), https://www.portland.gov/sites/default/files/2020-06/sustainable-supply-
chain-analysis-2016-executive-summary-final.pdf (supply chain analysis for Portland,
Oregon prepared by Trucost); Supply Chain Sustainability Report,
A
LAMEDA
C
NTY
.
S
USTAINABILITY
, https://www.acgov.org/sustain/what/purchasing/report.htm (last vis-
ited Apr. 24, 2022). (Alameda County, California supply chain analysis prepared by
Good Company);
J
ENNA
G
ARMON
& T
RACY
F
ISHER
,
M
ETRO
G
REENHOUSE
G
AS
E
MIS-
SIONS
I
NVENTORY
FY 2016–17
(2018), https://static1.squarespace.com/static/
5e1380910c47256ea5b5c982/t/6041b5a4e3b52c4f1ba6cd4d/1614919082218/Port-
land_Metro-FY2017_GHG_Inventory_Report-FINAL.pdf (Oregon Metro GHG in-
ventory for internal operations, which includes supply chain analysis for internal
operations at 13).
A 2015 meta-analysis of supply-chain analyses examined analyses from 15 city,
county and regional governments, and city parks and recreation and country transit
agencies.
W
EST
C
OAST
C
LIMATE
F
ORUM
,
S
UPPLY
C
HAIN
G
REENHOUSE
G
AS
I
NVEN-
TORY
M
ETA
-A
NALYSIS
5
(2015), https://westcoastclimateforum.com/files/re-
lated_documents/TA%20Final.pdf. Notably, the 2015 meta-analysis indicates that
“construction and maintenance” is by far the largest source of supply-chain emissions
for the 17 public agencies (15 local governments or agencies plus two state govern-
ments) in the analysis; “[f]ood, lodging and transport” is a relatively minor source of
supply-chain emissions for these governments. Id. at 11 (fig. 6) (percentage of supply
chain emissions, by organizational type, and purchasing category). It would be inter-
esting to know the estimated emissions from food distinct from transport and lodging;
and whether the local governments whose analyses are included in the meta-analysis
operate schools, jails and hospitals that tend to serve a lot of food, or whether the
included local governments’ food procurement is limited to feeding people employed
by the local government.
As with CBEIs, there appear to be various contractors assisting local govern-
ments with these supply chain analyses, and they appear to use a broadly similar
methodology. The analysis sorts the local government’s spending on procurement into
categories used by “Federal statistical agencies.”
T
RUCOST
at 4 n.4. Then GHG emis-
sions factors are applied to these various categories of expenditures. The GHG emis-
sions factors come from lifecycle assessment tools, such as EPA’s US
Environmentally-Extended Input-Output Models, which “provides impact factors per
dollar spent based on national data from federal sources.”
G
OOD
C
OMPANY
,A
NALYSIS
OF
S
USTAINABILITY
I
MPACTS OF
A
LAMEDA
C
OUNTY
S
UPPLY
C
HAIN
E
XPENDITURES
:
E
XECUTIVE
S
UMMARY
2
(2019), https://www.acgov.org/sustain/documents/supp-
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754 LEGISLATION AND PUBLIC POLICY [Vol. 24:725
Estimating the GHG emissions from food procurement may not
only seem more feasible for local governments than CBEIs but also
more useful. As mentioned above, the methodologies currently used to
conduct CBEIs mean that they cannot be used to track and showcase
the impacts of local government policy efforts to reduce GHG emis-
sions from food. This is because the key inputs to CBEIs—estimates
of consumer spending and GHG emission factors for consumer prod-
ucts—are typically based on national level estimates, not actual data
about local consumer expenditures or the GHG emissions of the spe-
cific products consumed locally.
In contrast, cities could likely track and highlight the effects of
changes in their procurement policies if cities estimated the GHG
emissions from the food for which they pay. As set out above, a key
input to these GHG estimates would be estimates of the amount that
the city government is spending on different categories of food, or the
volumes of these different foodstuffs. If a city decided to reduce its
purchases of high GHG-foods, such as meat and dairy products, the
city’s spending on these foods, or the volumes of them that it
purchases, would decline. Even if the emissions factors for the foods
remain constant, the decline in the spending or the volumes for certain
categories of foods would reduce the city’s GHG emissions from food
procurement, because these emissions are a function of the amount of
food purchased as well as the emissions factors. Thus, a local govern-
ment that implemented policies to reduce GHG emissions from food
procurement would likely be able to show progress in reducing these
emissions, something which might appeal to local policymakers. No-
tably, local officials in New York City have called for tracking GHG
emissions from food procurement,
131
and the City’s recent release of
GHG estimates from food procured by six City agencies would appear
to be a step in this direction.
132
lychainreport.pdf. See US Environmentally-Extended Input-Output (USEEIO) Models,
U.S. E
NV
T
P
ROT
. A
GENCY
, https://www.epa.gov/land-research/us-environmentally-
extended-input-output-useeio-models (last visited Feb. 15, 2022). See also the
description of the methodology for supply-chain analyses in
W
EST
C
OAST
C
LIMATE
F
ORUM
, supra at 8 (“The estimate stems from multiplying the quantity of purchases,
or spend, (the first term) by carbon intensity of a given economic sector per dollar
spent (the second term). The product of this equation is then summed across purchas-
ing categories to estimate total supply chain emissions of an organization.”).
131.
For example, in the Democratic primary for mayor in 2021, the current mayor
of New York City Eric Adams stated that “NYC should track its emissions from food
procurement and consumption.” Mayoral Food Forum 2021: Town Hall on the Future
of Food in New York City,
C
ITY
& H
ARVEST
, https://www.cityharvest.org/2021/01/
mayoral-forum/ (last visited Feb. 15, 2022).
132. Supra note 119 and accompanying text.
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2022] INTEGRATING FOOD 755
In addition to the feasibility and utility of estimating GHG emis-
sions from city food procurement, a third reason for estimating these
emissions is the potential that the information generated could help to
lay the groundwork for expanding the range of local policies to reduce
GHG emissions from food. The absence of food from local inventories
of GHG emissions means that local policymakers currently lack a
complete picture of the ways that their cities are contributing to cli-
mate change.
133
One would not expect the local emissions profile to
perfectly match the national profile, since urban areas are by no means
a perfect microcosm of the nation as a whole. However, the glaring
absence of major contributors to national emissions from local emis-
sions inventories undermines the value of the local inventories, espe-
cially when casual observation suggests that the locality contributes to
emissions from these sources.
Local inventories are notable for not capturing the GHG emis-
sions from products consumed in cities but produced elsewhere. The
EPA’s inventory of national GHG emissions identifies transportation,
electricity, industry, the commercial and residential sectors, and agri-
culture as sources of GHG emissions.
134
Emissions from four of these
sectors are reflected in the standard sector-based local inventories of
GHG emissions. Transportation sector emissions, the top source of
emissions in the EPA’s inventory, are included in local inventories.
135
Electricity sector emissions, the second largest source of emissions
133. In emphasizing the importance of tracking GHG emissions from food purchased
by local governments to promote a more accurate understanding of local contributions
to climate change, we draw on the argument of Professor Rosenbloom that “[f]ailing
to inventory and regulate consumption-based GHGs may dramatically skew the justi-
fication and accuracy of local regulatory actions.” Rosenbloom, supra note 76, at 497.
134. See
I
NVENTORY
, supra note 1, at ES-26 tbl. ES-6. This table provides emissions
totals for the transportation, industry, agriculture, commercial and residential sectors;
notably, electricity is listed as a separate line item and the emissions from electricity
are not distributed to the emission totals for each end use sector. Electricity emissions
are allocated to the end-use sectors of transportation, industry, agriculture, and com-
mercial and residential in Table ES-7: U.S. Greenhouse Gas Emissions by Economic
Sector with Electricity-Related Emissions Distributed (MMT CO2 Eq.). Id. at ES-27.
135.
The transportation sector GHG emissions in the NYC GHG Inventory includes
buses, heavy duty trucks, medium duty trucks, passenger cars, solid waste collection
vehicles, railways, marine navigation and aviation. See data filtered by “citywide” and
sector “transportation.” NYC Mayor’s Off. of Sustainability, Inventory of New York
City Greenhouse Gas Emissions, https://nyc-ghg-inventory.cusp.nyu.edu/ (last visited
Feb. 15, 2022). In EPA’s national inventory, the emissions totals for transportation are
in Table ES-6, which does not allocate to this sector the grid supplied electricity emis-
sions attributable to this sector. There is not a clear definition of “transportation”
associated with that table. However, the transportation section of EPA’s inventory
includes GHGs from “passenger cars, light duty trucks, medium and heavy duty
trucks, buses, motorcycles, commercial aircraft, other aircraft, ships and boats, rail
and pipelines.” See
I
NVENTORY
, supra note 1, at tbl. 2-13.
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756 LEGISLATION AND PUBLIC POLICY [Vol. 24:725
nationally, and emissions from the residential and commercial sectors,
are captured in the local inventories under the buildings category (also
referred to as the stationary energy category). For example, in New
York City’s sector-based inventory, the stationary energy category in-
cludes emissions from grid-supplied electricity, and fossil fuels com-
busted onsite in buildings.
136
Noticeably absent from the sector-based
local inventories are emissions from agriculture or food. It seems
anomalous that food, which is the end product of agriculture and is
definitely consumed in cities, is not included among the sources of
local GHG emissions in the standard local inventory.
137
Although be-
yond the focus of this article, another notable omission from the stan-
dard local sector-based inventories are the emissions arising in
producing industrial products used in cities,
138
such as construction
136. The NYC GHG Inventory defines “stationary energy” to include “energy used
by buildings and other stationary sources, as well as fugitive emissions from natural
gas distribution within city limits.” The stationary sources include biofuel, electricity,
natural gas, natural gas, steam, #2 fuel oil, #4 fuel oil and #6 fuel oil. NYC Mayor’s
Off. of Sustainability, supra note 135.
In the EPA GHG Inventory, Table ES-6 identifies the GHG emissions from the
commercial and residential sector categories; the emissions figures for these sectors
do not include the grid supplied electricity emissions attributed to the sectors. There is
no definition of “commercial” or “residential” that corresponds to Table ES-6. How-
ever, later, in the report, commercial and residential sector emissions are defined as
the direct, on-site use of fossil fuels, such as “the consumption of natural gas and
petroleum for heating and cooking.” See
I
NVENTORY
, supra note 1, at ES-14. In Table
ES-7, electricity emissions are re-allocated to end-use sectors. Id. at ES-27 tbl. ES-7.
137.
Table ES-6 in EPA’s inventory does not provide a cohesive definition of the
“agriculture” category.
I
NVENTORY
, supra note 1, at ES-26. However, agricultural
emissions are defined at the outset of the inventory’s chapter on agriculture. The EPA
inventory of GHGs measures agriculture emissions from a variety of sources, includ-
ing “methane (CH
4
) and nitrous oxide (N
2
O) emissions from enteric fermentation in
domestic livestock, livestock manure management, rice cultivation, agricultural soil
management, and field burning of agricultural residues; as well as carbon dioxide
(CO
2
) emissions from liming and urea fertilization.”
EPA, I
NVENTORY
, supra note 1,
at 5-1. Additionally, GHG fluxes “from agriculture-related land-use and land-use con-
version activities, such as cultivation of cropland, grassland fires, aquaculture, and
conversion of forest land to cropland are presented in the Land Use, Land-Use
Change, and Forestry (LULUCF) chapter [of the inventory];” “emissions from statio-
nary and mobile on-farm energy use [are] reported in the Energy chapter under the
Industrial sector emissions;” and “methane and N2O emissions from mobile on-farm
energy use are reported in the Energy chapter under mobile fossil fuel combustion
emissions.”
EPA, I
NVENTORY
, supra note 1, at 5-1.
138. Table ES-6 in EPA’s inventory does not define the “industry” category.
I
NVEN-
TORY
, supra note 1, at ES-26. However, later in the report, the “industrial processes”
whose emissions are counted in that chapter are defined as including “iron and steel
production & metallurgical coke production;” cement production; petrochemical pro-
duction and many other processes. Id. at 4-2 fig. 4-1. The emissions attributed to
industry in Table ES-6 do not appear to include the emissions associated with the
electricity used by industry; however, in Table ES-7, industry emissions include emis-
sions from electricity used by industry. Id. at ES-27 tbl. ES-7. Industry is the number
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2022] INTEGRATING FOOD 757
materials like steel.
139
The absence of food (and industrial products)
from local inventories likely reduces understanding at the local gov-
ernment level of the extent to which cities contribute to important
sources of emissions at the national level, and holds back policy
development.
Counting GHG emissions from food paid for by the city could
provide information and a basis for city policymakers and advocates
to emphasize that food choices have implications for the climate, not
just the individuals eating the food. The GHG emissions from food
production are an externality that are not currently priced into food
products, and so people—and governmentscan ignore them in buy-
ing food. Tracking the GHG emissions from food procured by city
governments could be a small step toward increasing awareness
among local policymakers, advocates, and the public at large of the
consequences of the current levels of meat and dairy consumption for
the climate. Tracking these emissions also could set the stage for more
local governments to commit to reducing emissions from food pro-
cured by cities, and monitoring whether these GHG reduction commit-
ments are met.
140
Once cities figure out how to count the GHG
emissions from the food products that they themselves purchase, they
might expand their GHG inventories to include consumption-based
accounting of GHG emissions from food and other products purchased
generally within the city, by private actors as well as governments.
C
ONCLUSION
In 2019, Republican politicians attacked the Green New Deal as a
threat to people’s continuing right to eat hamburgers.
141
While the
Green New Deal never included a threat to ban hamburgers,
142
the
one source of U.S. emissions when the emissions for the electricity that industry uses
are attributed to industry. Id. at ES-27.
139.
On embodied carbon in buildings, see
C
ARBON
L
EADERSHIP
F
ORUM
, https://
carbonleadershipforum.org/ (last visited Feb. 15, 2022).
140.
In 2021, Washington D.C. simultaneously legislated to track the GHG emis-
sions from the food it procures and reduce the GHG emissions from this food.
D.C.
C
ODE
§ 8-151.09b (2022). See also Daniel Zarrilli, 7 Climate Steps for the Adams
Administration to Move New York City Ahead,
G
OTHAM
G
AZETTE
(Dec. 27, 2021),
https://www.gothamgazette.com/games-archive/130-opinion/10994-7-climate-steps-
eric-adams-administration-new-york-city (once New York City counts scope 3 emis-
sions, it could “upgrad[e] procurement rules to reduce greenhouse gas emissions from
purchased products and food”).
141. Emily
Atkin, The Potency of Republicans’ Hamburger Lie,
T
HE
N
EW
R
EPUBLIC
(Mar. 4, 2019), https://newrepublic.com/article/153187/potency-republicans-
hamburger-lie.
142. Id.
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758 LEGISLATION AND PUBLIC POLICY [Vol. 24:725
episode demonstrates the political risks of taking on the consumption
of meat to limit climate change, at least at the national level. Many
people would likely be uncomfortable with, if not downright hostile
to, the federal government attempting to reduce people’s consumption
of meat, which is an important source of protein and other nutrients
and a part of American food culture.
This Article suggests that progressive politicians in leading
American cities may have more political latitude to experiment with
policies to reduce meat and dairy consumption as part of limiting cli-
mate change—and improving public health and animal welfare. As if
to prove the point, while reducing meat consumption has been fodder
for attack politics at the federal level, the city of Washington, D.C. has
passed an ordinance mandating that the city reduce the GHG emis-
sions from the food that it purchases.
143
This Article endorses one
modest step to which Washington, D.C. already has committed itself,
and that other local governments could take as well, to draw attention
to the harms to the planet from our food choices: tracking the GHG
emissions resulting from the foods that city governments procure. Do-
ing so might set the stage for reducing these emissions and broadening
an understanding of the ways that people are contributing to climate
change.
143. See supra note 16.