Without radical change, we are on course to a terrifying future of extreme weather events, mass refugee crises, serial species extinctions, and the likely loss of human civilization. Time To Stand Up: An Engaged Buddhist Manifesto for Our Earth encourages Buddhists to join with other faith groups and activists to reverse the causes of catastrophic climate change. We can’t bring about the changes needed on our own, or as small groups; instead, to ensure a sustainable world for future generations, there has to be massive mobilization to pressure political and social systems in order to catalyze energy, economic, and social revolution.