a report published by the United Nations Food and Agriculture Organization which finds that livestock are one of the most significant contributors to today’s most serious environmental problems and that urgent action is required to remedy the situation (pdf)

seeks to eliminate factory farming in favor of sustainable food production system which is healthful and humane, economically viable and ecologically sound

campaign against factory farming - an attitude which regards animals and the natural world merely as commodities to be exploited for profit at great costs in terms of animal cruelty, health risks and environmental destruction

a campaign by Sierra Club which seeks to keep animal waste of of water