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Draft:Environmental Impacts of Animal Agriculture

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Revision as of 09:46, 9 January 2020 by Greg.Fuller (talk | contribs) (→‎Personal Responsibility)

Introduction

Advocacy

Fact Sheet

Scope of Harms

Personal Responsibility

  • "A vegan diet is probably the single biggest way to reduce your impact on planet earth"—"It is far bigger than cutting down on your flights or buying an electric car.” So says Joseph Poore, who led the 2018 Oxford Study,[1][2] which was called the most comprehensive analysis to date of its kind."[3]
  • Researchers from the University of Chicago determined that you reduce your personal contribution to global warming more by changing to a vegan diet than you do by switching to a Prius[4]
  • In 2017, over 15,000 scientists from 184 countries issued a "Warning to Humanity," promoting plant-based eating as a way to reduce greenhouse gas emissions.[5]

Land Surface and Biomass

  • About 30 percent of the world's land is devoted to raising livestock.[6]

Global Warming

  • A United Nations study in 2006, Livestock's Long Shadow, said that livestock accounts for 18% of global greenhouse gas emissions, but a study by World Watch Institute three years later said the U.N. report failed to consider some of the factors, and put the figure at 51%.[6][7]
  • Even at the lower number, animal agriculture contributes more to global warming than all cars, trucks, trains, buses, airplanes, and ships combined—more than the entire transportation sector, which the EPA pegs at 14% globally.[8]

Deforestation

  • Seventy-five percent of deforestation in Brazil is due to the clearing land for cattle ranching. This was responsible for 50 percent of Brazil's greenhouse gas emissions from 2003-2008.[9] Forests are also cleared in order to grow crops, mainly to feed to livestock.[10]

Species Extinction

  • Animal agriculture, including the production of beef and dairy products, contributes to species extinction in many ways. These include:[6] moss of habitat due to deforestation, he killing of predators to protect livestock, contamination of land and water by manure and pesticides/fertilizers (used to grow crops for livestock), uncreased global warming as some species are not able to adapt quickly enough to survive.

Fish Depletion

Eutrophication

  • On factory farms, animals produce huge quantities of waste in a comparatively small area. For example, a farm of 2500 dairy cows can produce as much waste as a city of 411,000 people.[11] This waste is dumped untreated into large "lagoons" or spread across nearby fields. When lagoons overflow or waste runs off the fields, it can contaminate waterways and may even flow as far as the ocean. Since manure is high in nitrogen, it can cause algae in the water to bloom and use up much of the available oxygen — a process known as eutrophication. This creates what is known as a nitrogen-flooded ocean dead zone, where it is difficult for anything else to survive.[12]

Water Pollution

Water Wastage

Air Pollution

  • Beef production is hugely water-intensive, largely due to the amount of water required to grow the crops eaten by factory-farmed animals.[6] Researchers suggest that at least 2,500 gallons of water are required to produce a single pound of beef, and the figure could be as high as over 11,300 gallons.[13][14]

See Also

Plain Text

Footnotes

  1. ↑ https://science.sciencemag.org/content/360/6392/987.full
  2. ↑ https://science.sciencemag.org/content/sci/360/6392/987.full.pdf
  3. ↑ https://www.theguardian.com/environment/2018/may/31/avoiding-meat-and-dairy-is-single-biggest-way-to-reduce-your-impact-on-earth
  4. ↑ Gidon Eshel, and Pamela A. Martin. “Diet, Energy, and Global Warming.” Department of Geophysical Sciences, University of Chicago, 2005. Accessed November 14, 2019. http://journals.ametsoc.org/doi/pdf/10.1175/EI167.1
  5. ↑ Ripple, William J., Christopher Wolf, Thomas M. Newsome, Mauro Galetti, Mohammed Alamgir, Eileen Crist, Mahmoud I. Mahmoud, William F. Laurance, and 15,364 scientist signatories from 184 countries. “World Scientists’ Warning to Humanity: A Second Notice.” BioScience 67, no. 12 (December 1, 2017): 1026–28. Accessed December 3 2019. https://doi.org/10.1093/biosci/bix125.
  6. ↑ 6.0 6.1 6.2 6.3 Steinfeld, Henning, Pierre Gerber, T. D. Wassenaar, Vincent Castel, Mauricio Rosales M. , and Cees de Haan. Livestock’s Long Shadow: Environmental Issues and Options. Rome: Food and Agriculture Organization of the United Nations, 2006.
  7. ↑ Goodland, R, and J Anhang. “ Livestock and Climate Change: What If the Key Actors in Climate Change Are... Cows, Pigs, and Chickens?” Washington: Worldwatch Institute, 2009.
  8. ↑ US EPA, OAR. “Global Greenhouse Gas Emissions Data.” Overviews and Factsheets. US EPA, January 12, 2016. Accessed December 3 2019. https://www.epa.gov/ghgemissions/global-greenhouse-gas-emissions-data.
  9. ↑ Bustamante, Mercedes M. C., Carlos A. Nobre, Roberto Smeraldi, Ana P. D. Aguiar, Luis G. Barioni, Laerte G. Ferreira, Karla Longo, Peter May, Alexandre S. Pinto, and Jean P. H. B. Ometto. “Estimating Greenhouse Gas Emissions from Cattle Raising in Brazil.” Climatic Change 115, no. 3–4 (December 2012): 559–77. Accessed December 3 2019. https://doi.org/10.1007/s10584-012-0443-3.
  10. ↑ “Plan B Updates - 86: Growing Demand for Soybeans Threatens Amazon Rainforest | EPI.” Accessed November 24, 2019. http://www.earth-policy.org/plan_b_updates/2009/update86.
  11. ↑ “Risk Assessment Evaluation for Concentrated Animal Feeding Operations.” United States Environmental Protection Agency, May 2004.
  12. ↑ Cite error: Invalid <ref> tag; no text was provided for refs named :2
  13. ↑ Robbins, John. Diet for a New America. Tiburon, Calif: H J Kramer, 1998, 367.
  14. ↑ Pimentel, David, Bonnie Berger, David Filiberto, Michelle Newton, Benjamin Wolfe, Elizabeth Karabinakis, Steven Clark, Elaine Poon, Elizabeth Abbett, and Sudha Nandagopal. “Water Resources: Agricultural and Environmental Issues.” BioScience 54, no. 10 (2004): 909. Accessed December 3 2019. https://doi.org/10.1641/0006-3568(2004)054[0909:WRAAEI]2.0.CO;2.

Meta

This fact sheet was originally authored by Greg Fuller. The contents may have been edited since that time by others.

See Also

Plain Text

Footnotes


Meta

This fact sheet was originally authored by Greg Fuller and copyedited by Isaac Nickerson. The contents may have been edited since that time by others.

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