The Green Heroes of Planet Earth

Earth Day is April 22nd. Celebrate in the spirit of being green with Pulitzer Prize winning journalist Edward Humes. Americans are beginning to realize that the state — and fate – of the environment is at a critical juncture. Global warming, resource depletion and pollution are threatening the natural world as well as our own health, wealth and survival. What, if anything, can be done, and who is leading the way? These 'green heroes’ unwavering commitment to preserving the land, saving endangered species and challenging conventional wisdom will inspire us all.