森林砍伐
畜养动物是伐林的主因之一。4 （联合国粮食及农业组织，2006 年） 自1990 年代至今，亚马逊地区的伐林，约90%是为了开垦土地用来牧牛或种植饲料。5 这20 年来，澳洲的树林砍伐，91%是为了当作牧场。 6 （近日昆士兰州政府委托环境暨资源管理局前首席科学家杰瑞德＿毕夏普先生〔Gerard Bisshop〕所做的20 年研究报告） 土地沙漠化
过度放牧和不断扩大饲料种植面积，造成土地沙漠化。7 （《联合国防治沙漠化公约》〔UNCCD〕主题专案3：干燥地区的牧地管理及沙丘固定，2003 年） 8 农业管理不善、气候变迁和放牧活动，造成每年约750亿吨表土受侵蚀。单单在美国，就有54%的牧地被过度放牧，每公顷土地每年损失100吨以上的表土。 9 （最近在澳洲新南威尔斯州举行的碳耕会议上，约翰＿克劳馥教授〔John Crawford〕提出的研究报告） 2010年，伊拉克、中国、乍得、澳洲、蒙古和其他国家发生严重干旱，而放牧动物让旱情更加严重。 参考来源
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