Beef pollutes more than pork poultry study says

first_imgWASHINGTON — Raising beef for the American dinner table does far more damage to the environment than producing pork, poultry, eggs or dairy, a new study says.Compared with the other animal proteins, beef produces five times more heat-trapping gases per calorie, puts out six times as much water-polluting nitrogen, takes 11 times more water for irrigation and uses 28 times the land, according to the study published Monday in the journal Proceedings of the National Academy of Sciences.Cows are not efficient at converting feed to protein for human consumption, said lead author Gidon Eshel, an environmental physics professor at Bard College in New York. Eshel used U.S. government figures to calculate air and water emissions and how much water and land were used in the lifetime production of beef, pork, poultry, dairy and eggs. While other studies have looked at the issue, this is one of the most comprehensive pieces of research quantifying and comparing the U.S. environmental costs of different meats and other animal protein.last_img

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