SOME STATISTICS ON THE NEGATIVE EXTERNALITIES OF ANIMAL AGRICULTURE (TO BE UPDATED REGULARLY)

FAO:

  • Percentage of greenhouse gas emissions related to animal agriculture: 18% (a larger share than transportation)
  • Percentage of previously forested area of the Amazon dedicated to rangeland or livestock feed: 70%
  • Ice-free terrestrial surface dedicated to rangeland: 26%, arable land dedicated to livestock feed: 33%
  • Total agricultural land dedicated to livestock: 70% 
  • Number of animals involved in livestock per year, excluding marine animals: roughly 60 Billion
US EPA
  • Factor by which the amount of CAFO waste in the US is larger than all human waste of people in the US: 3 times

WORLD BANK

  • Percentage of the Amazon deforested for livestock  since 1970: 91% (link)
WORLDWATCH INSTITUTE:
  • Percentage of US corn dedicated to livestock feed: 70%, percentage of US soy dedicated to livestock feed: 80%
  • Percentage of fish catch used as livestock feed: 33% 
  • Calories of feed needed to produce one calorie of beef, pork, and poultry: 11-17 calories
  • Amount of water needed to produce an 8oz. cut of beef: up to 25,000 Liters [in the US]
  • Amount of waste that a sow and the 20 piglets she births in a year can produce in that year: up to  1.9 tons
  • Amount of waste that US CAFOs produced in 2004: 600 million tons

OTHER SOURCES

  • Area of land in the Brazilian Amazon dedicated to cattle ranching in 2009: 214,000 square miles (larger than France) Greenpeace
  • Water used to produce 1) a kilo of beef: 15,500 liters, 2)  a kilo of wheat: 1,300 liters [in Britain] Oxfam
  • Quantity of global fish catch fed to livestock and aquaculture: 1/3 Annual Review of Environment and Resources
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