People Who Make a Difference: Xiuhtezcatl Martinez
People Who Make a Difference: Wangari Maathai
People Who Make a Difference: Tokata Iron Eyes
People Who Make a Difference: Shelton Johnson
People Who Make a Difference: Ron Finley
People Who Make a Difference: Mark Magaña
People Who Make a Difference: Lindsey Lusher Shute
People Who Make a Difference: Leah Penniman
