Because 15% (7 Gt CO₂/year) of our greenhouse gas emissions are from livestock, and meat is a substantial chunk of that. [1] [1] http://www.fao.org/news/story/

Because 15% (7 Gt CO₂/year) of our greenhouse gas emissions are from livestock, and meat is a substantial chunk of that. [1] [1] http://www.fao.org/news/story/en/item/197623/icode/ http://www.fao.org/news/story/en/item/197623/icode/