Report suggests livestock contributes a fifth of GHG emissions

“Livestock-based food production...causes about one-fifth of global greenhouse gas emissions.”Eshel et al., “Land, irrigation water, greenhouse gas, and reactive nitrogen burdens of meat, eggs, and dairy production in the United States,” PNAS Early Edition, June, 2014., 1. http://www.pnas.org/content/early/2014/07/17/1402183111.full.pdf

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