"The United Nations Food and Agriculture Organization found in 2006 that livestock production generates 18 percent of greenhouse gases worldwide — more than the entire transportation sector of cars, trucks, planes, and ships combined. Cows constantly belch methane from their four stomachs, and lagoons of pig effluent release the gas into the air. Much of the world's beef comes from deforested areas (70 percent of former Amazon rainforest is now used for cattle grazing), a one-two punch from the loss of carbon dioxide-absorbing trees and the addition of more animals."
Tags: