Sen. Kerry and Mrs. Heinz recently released This Moment on Earth: Today's New Environmentalists and Their Vision for the Future, a book that celebrates environmental innovators, with the proceeds of the sales going to environmental causes. Sen. Kerry served two tours of duty in Vietnam. On his second tour, he volunteered to serve on a Swift Boat in the river deltas, one of the most dangerous assignments of the war. For his leadership, courage, and sacrifice under fire, he was decorated with a Silver Star, a Bronze Star with Combat V, and three Purple Hearts. He was elected Lieutenant Governor in 1982. In that office, he organized the nation's governors to combat the acid rain that was polluting lakes, rivers, and the nation's water supply. Two years later, he was elected to the United States Senate and he has won reelection three-times since. He is now serving his fourth term, after winning again in 2002 by the largest margin in Massachusetts history. In 2004, he earned the Democratic nomination for president of the United States.