Authors with Environmentalist Profession Bill McKibben environmentalist Bhagat Puran Singh environmentalist Douglas Tompkins environmentalist David R. Brower environmentalist David Foreman environmentalist Ian Kiernan environmentalist Chris Baines environmentalist Chico Mendes environmentalist Carl Pope environmentalist Gregory Kats environmentalist Elizabeth May environmentalist Edward Goldsmith environmentalist Lester R. Brown environmentalist Mimi Macpherson environmentalist Norman Myers environmentalist Judi Bari environmentalist Jonathon Porritt environmentalist Jim MacNeill environmentalist Paul Hawken environmentalist Sunderlal Bahuguna environmentalist 12»