The first complete account of Greenpeace, a movement initiated in 1970 when a handful of Canadian activists founded an organization devoted to improving ecological conditions and denouncing nuclear weaponry. Today thousands of people on every continent continue to support the cause. These participants in the crusades to prevent unnecessary mass killings of whales and seals and in the atomic bomb testing debacles at Amchitka and Mururoa have risked their lives, their careers, their marriages, and their freedom in what has become one of the most active and vocal crusades of the twentieth century.