This companion to the documentary Cowspiracy explores the devastating environmental impacts of animal agriculture—and new paths to sustainability. The 2014 documentary Cowspiracy presented alarming truths about the effects of animal agriculture on the planet. One of the leading causes of deforestation, greenhouse gas production, water use, species extinction, ocean dead-zones, and a host of other ills, animal agriculture is a major threat to the future of all species, and one of the environmental industry's best-kept secrets. The Sustainability Secret expands upon Cowspiracy in every way. In this updated volume, the film's co-creators reveal shocking new facts and interview the leaders of businesses, environmental organizations, and political groups about the disastrous effects of animal agriculture. Extended transcripts, updated statistics, tips on becoming vegan, and comprehensive reading lists provide an in-depth overview of this planetary crisis and demonstrate effective ways to offset the damage.