Rebecca Richards-Kortum is a "genius grant" winner with a very busy schedule. The engineering professor, who encourages students to come up with medical devices that will be valuable in the developing world, is the mother of six and a marathon runner.
John D. and Catherine T. MacArthur Foundation
Frances Moore Lappe speaks at a Rainforest Action Network event. When she wrote the best-selling Diet For A Small Planet back in 1971, she helped start a conversation about the social and environmental impacts of the foods we choose.
Rainforest Action Network/Flickr