/*Starred Review*/ The profusion of good causes and the nonprofit groups that advance them can seem laughably overwhelming, but without altruistic grass-roots efforts, the world would be a far less merciful place. Environmentalist Hawken believes that we are in the midst of a world-changing rise of activist groups, all "working toward ecological sustainability and social justice." Rather than an ideological or centralized movement, this coalescence is a spontaneous and organic response to the recognition that environmental problems are social-justice problems. Writing with zest, clarity, and a touch of wonder, Hawken compares this gathering of forces to the human immune system. Just as antibodies rally when the body is under threat, people are joining together to defend life on Earth. Hawken offers a fascinating history of our perception of nature and human rights and assesses the role indigenous cultures are playing in the quest for ecological responsibility and economic fairness. Hawken also presents an unprecedented map to this new "social landscape" that includes a classification system defining astonishingly diverse concerns, ranging from farming to child welfare, ocean preservation, and beyond. Fresh and informative, Hawken's inspired overview charts much that is right in the world. ((Reviewed April 15, 2007)) Copyright 2007 Booklist Reviews.