Livestock's Long Shadow
|Author||Henning Steinfeld, Pierre Gerber, Tom Wassenaar, Vincent Castel, Mauricio Rosales, Cees de Haan.|
|Publisher||Food and Agriculture Organization of the United Nations|
|Media type||book |
|LC Class||SF140.E25 S744 2006|
Livestock's Long Shadow: Environmental Issues and Options is a United Nations report, released by the Food and Agriculture Organization (FAO) of the United Nations on 29 November 2006, that "aims to assess the full impact of the livestock sector on environmental problems, along with potential technical and policy approaches to mitigation". It stated that livestock accounts for 18% of anthropogenic greenhouse gas emissions, a figure which FAO changed to 14.5% in its 2013 study Tackling climate change through livestock.
Livestock's Long Shadow is an assessment of research, taking into account direct impacts of livestock production, along with the impacts of feed crop cultivation. The report states that the livestock sector is one of the top two or three most significant contributors to serious environmental problems. The findings of this report suggest that it should be a major policy focus when dealing with problems of land degradation, climate change and air pollution, water shortage and water pollution, and loss of biodiversity.
Senior author Henning Steinfeld stated that livestock are "one of the most significant contributors to today’s most serious environmental problems" and that "urgent action is required to remedy the situation."
Following a life-cycle analysis approach, the report evaluates "that livestock are responsible for 18% of greenhouse gas emissions"  Greenhouse gas emissions arise from feed production (e.g. chemical fertilizer production, deforestation for pasture and feed crops, cultivation of feed crops, feed transport and soil erosion), animal production (e.g. enteric fermentation and methane and nitrous oxide emissions from manure) and as a result of the transportation of animal products. Following this approach the report estimates that livestock "is responsible for 18 percent" of total anthropogenic carbon dioxide emissions, but 37% of methane and 65% of nitrous oxide emissions. The main sources of emissions were found to be:
- Land use and land use change: 2.5 Gigatonnes carbon dioxide equivalent; including forest and other natural vegetation replaced by pasture and feed crop in the Neotropics (CO2) and carbon release from soils such as pasture and arable land dedicated to feed production (CO2)
- Feed Production (except carbon released from soil): 0.4 Gigatonnes CO2 equivalent, including fossil fuel used in manufacturing chemical fertilizer for feed crops (CO2) and chemical fertilizer application on feed crops and leguminous feed crop (N2O, NH3)
- Animal production: 1.9 Gigatonnes CO2 equivalent, including enteric fermentation from ruminants (CH4) and on-farm fossil fuel use (CO2)
- Manure Management: 2.2 Gigatonnes CO2 equivalent, mainly through manure storage, application and deposition (CH4, N2O, NH3)
- Processing and international transport: 0.03 Gigatonnes CO2 equivalent
A 2009 article in the Worldwatch Institute magazine by authors Robert Goodland and Jeff Anhang, then employed at the World Bank, claimed that the FAO report was too conservative and that livestock sector accounts for much more of global GHG emissions, at least 51%, taking into account animal respiration and photosynthetic capacity of the land used for feeding and housing livestock. A 2011 response to this was published by FAO and an international coalition of scientists, discrediting the magazine article and upholding the 2006 assessment. But this response was fully answered back in Animal Feed Science and Technology (AFST) Journal, and they reiterated their estimate while FAO scientists declined to continue the debate despite AFST Editor’s invitation. In 2013 FAO publicly partnered with International Meat Secretariat and the International Dairy Federation and many of the same authors of the first report published a subsequent (2013) study for the FAO, revising their estimate of anthropogenic greenhouse gas emissions due to livestock downward to 14.5% without addressing any of the alleged errors pointed out in Goodland and Anhang’s report or in the ensuing peer-reviewed debate.
The results of Livestock's Long Shadow had an error in methodology as the authors only compared tailpipe emissions of cars while meat production a comprehensive life-cycle assessment was used to calculate livestock’s green house gas effect. This underestimated transportation therefore inflating meat productions contribution. This issue was raised by Dr. Frank Mitloehner from the University of California, Davis. In an interview with BBC Pierre Gerber, one of the authors of Livestock's Long Shadow, accepted Dr. Mitloehner's criticism. "I must say honestly that he has a point - we factored in everything for meat emissions, and we didn't do the same thing with transport, we just used the figure from the IPCC..." he said. However, this information is still commonly misused in movements such as "Meatless Monday".
Dr. Mitloehner is the author of a 2009 study on the topic of livestock and climate change. Five percent of the funds for said study were provided by the livestock industry, according to the press release of Mitloehner's university. FAO cites him as a representative of the International Feed Industry Federation whose "vision is to provide a unified voice and leadership to represent and promote the global feed industry as an essential participant in the food chain that provides sustainable, safe, nutritious and affordable food for a growing world population."
In an article Rethinking methane from animal agriculture published June 2021 , the authors evaluate the climate impact of methane emissions from cattle using an alternative Global Warming Potential GWP* that takes the short atmospheric lifetime of methane into account. They conclude that methane emissions from the U.S. cattle industry have not contributed additional climate warming since 1986.
References to the report
- Henning Steinfeld, Pierre Gerber, Tom Wassenaar, Vincent Castel, Mauricio Rosales, Cees de Haan (2006). Livestock's long shadow (PDF) (Report). FAO. ISBN 978-92-5-105571-7. Retrieved 27 September 2019.CS1 maint: uses authors parameter (link)
- "Livestock a major threat to environment". Fao.org. Retrieved 16 August 2018.
- FAO Agriculture and Consumer Protection Department (2006). "Livestock impacts on the environment". Food and Agriculture Organization of the United Nations. Archived from the original (PDF) on August 28, 2015. Retrieved October 25, 2016.
- Livestock's long shadow : environmental issues and options. Steinfeld, Henning., Food and Agriculture Organization of the United Nations., Livestock, Environment and Development (Firm). Rome: Food and Agriculture Organization of the United Nations. 2006. pp. xxi. ISBN 978-92-5-105571-7. OCLC 77563364.CS1 maint: others (link)
- MacKay, Fiona (2009-11-16). "Looking for a Solution to Cows' Climate Problem". The New York Times. Retrieved 16 August 2018.
- Goodland, Robert; Anhang, Jeff (Nov–Dec 2009). "Livestock and Climate Change: What if the key actors in climate change were pigs, chickens and cows?" (PDF). Worldwatch Magazine. Worldwatch Institute. pp. 10–19. Archived from the original (PDF) on 2019-10-01. Retrieved 1 October 2019.
- "Livestock and climate change: Towards credible figures". Ilri.org. Retrieved 16 August 2018.
- Herrero, M.; Gerber, P.; Vellinga, T.; Garnett, T.; Leip, A.; Opio, C.; Westhoek, H.J.; Thornton, P.K.; Olesen, J.; Hutchings, N.; Montgomery, H.; Soussana, J.-F.; Steinfeld, H.; McAllister, T.A. (2011). "Livestock and greenhouse gas emissions: The importance of getting the numbers right" (PDF). Animal Feed Science and Technology. 166–167: 779–782. doi:10.1016/j.anifeedsci.2011.04.083. hdl:10568/3910. Retrieved 3 October 2019.
- Goodland, Robert; Anhang, Jeff (2012). "Comment to the editor. Livestock and greenhouse gas emissions: The importance of getting the numbers right by Herrero et al". Animal Feed Science and Technology. 166–167: 779–782. doi:10.1016/j.anifeedsci.2011.04.083. hdl:10568/3910.
- Goodland, Robert (2012-07-11). "FAO Yields to Meat Industry Pressure on Climate Change". Mark Bittman Blog, New York Times. Retrieved 2021-02-28.
- "Tackling climate change through livestock // FAO's Animal Production and Health Division". Fao.org. Retrieved 16 August 2018.
- Gerber, P.J., Steinfeld, H., Henderson, B., Mottet, A., Opio, C., Dijkman, J., Falcucci, A. & Tempio, G. (2013). Tackling climate change through livestock – A global assessment of emissions and mitigation opportunities (PDF) (Report). Food and Agriculture Organization of the United Nations (FAO). pp. 1–139. ISBN 978-92-5-107921-8. Retrieved 3 October 2019.CS1 maint: uses authors parameter (link)
- "UN body to look at meat and climate link". 2010-03-24.
- Pitesky, Maurice E.; Stackhouse, Kimberly R.; Mitloehner, Frank M. (2009-01-01), Sparks, Donald L. (ed.), "Chapter 1 - Clearing the Air: Livestock's Contribution to Climate Change", Advances in Agronomy, Advances in Agronomy, Academic Press, 103, pp. 1–40, retrieved 2020-06-19
- Hickman, Leo (2010-03-24). "Do critics of UN meat report have a beef with transparency? | Leo Hickman". The Guardian. ISSN 0261-3077. Retrieved 2020-06-19.
- "Don't Blame Cows for Climate Change". UC Davis. 2009-12-07. Retrieved 2020-06-19.
- "Members of Steering Committee| Livestock Environmental Assessment and Performance (LEAP) Partnership| Food and Agriculture Organization of the United Nations". www.fao.org. Retrieved 2020-06-19.
- "International Feed Industry Federation – IFIF Vision & Mission". ifif.org. Retrieved 2020-06-19.
- S Liu, J Proudman, FM Mitloehner, Rethinking methane from animal agriculture, CABI Agric Biosci 2, 22 (2021), https://link.springer.com/article/10.1186/s43170-021-00041-y
- Global Warming: Meat The Truth. GlobeTransformer.org.
- "Cowspiracy: The Facts"
- Steinfeld, Henning; Gerber, Pierre; Wassenaar, T.; Castel, V.; Rosales, Mauricio; De Haan, C. (2006). Livestock's Long Shadow – Environmental Issues and Options. Food and Agriculture Organisation. ISBN 92-5-105571-8.
- Bland, Alastair (August 1, 2012). "Is the Livestock Industry Destroying the Planet?". Smithsonian.