Environmental reasons for being vegetarian

The Tricycle Blog carried this quotation from the Audobon Magazine:

Simply put, raising beef, pigs, sheep, chicken, and eggs is very, very energy intensive. More than half of all the grains grown in America actually go to feed animals, not people, says the World Resources Institute. That means a huge fraction of the petroleum-based herbicides, pesticides, and fertilizers applied to grains, plus staggering percentages of all agricultural land and water use, are put in the service of livestock. Stop eating animals and you use dramatically less fossil fuels, as much as 250 gallons less oil per year for vegans, says Cornell University’s David Pimentel, and 160 gallons less for egg-and-cheese-eating vegetarians.

But fossil fuel combustion is just part of the climate–diet equation. Ruminants—cows and sheep—generate a powerful greenhouse gas through their normal digestive processes (think burping and emissions at the other end). What comes out is methane (23 times more powerful at trapping heat than CO2) and nitrous oxide (296 times more powerful).

Indeed, accounting for all factors, livestock production worldwide is responsible for a whopping 18 percent of the world’s total greenhouse gases, reports the U.N. Food and Agriculture Organization. That’s more than the emissions of all the world’s cars, buses, planes, and trains combined.

One Response to “Environmental reasons for being vegetarian”

1. Woody Gilk says:

   January 21, 2009 at 12:52 pm

   Thank you for this. I think many non-vegetarians believe that all vegetarians (and vegans) are PETA-types who don’t eat meat because they thing animals are people too. The environmental/ecological argument is much more scientific and realistic.