森林砍伐
畜養動物是伐林的主因之一。4 （聯合國糧食及農業組織，2006 年） 自1990 年代至今，亞馬遜地區的伐林，約90%是為了開墾土地用來牧牛或種植飼料。5 這20 年來，澳洲的樹林砍伐，91%是為了當作牧場。 6 （近日昆士蘭州政府委託環境暨資源管理局前首席科學家傑瑞德‧畢夏普先生〔Gerard Bisshop〕所做的20 年研究報告） 土地沙漠化
過度放牧和不斷擴大飼料種植面積，造成土地沙漠化。7 （《聯合國防治沙漠化公約》〔UNCCD〕主題專案3：乾燥地區的牧地管理及沙丘固定，2003 年） 8 農業管理不善、氣候變遷和放牧活動，造成每年約750億噸表土受侵蝕。單單在美國，就有54%的牧地被過度放牧，每公頃土地每年損失100噸以上的表土。 9 （最近在澳洲新南威爾斯州舉行的碳耕會議上，約翰‧克勞馥教授〔John Crawford〕提出的研究報告） 2010年，伊拉克、中國、查德、澳洲、蒙古和其他國家發生嚴重乾旱，而放牧動物讓旱情更加嚴重。 參考來源
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