When Kehkashan Basu was seven years old she saw a photo of a dead bird full of plastic. That was the start. Now she is twenty, and the organization for youths that she founded has 140,000 members worldwide. Two of the leaders in that organization, Green Hope, are Pragna Vasupal and Erin Isabel, who join her in describing their work. They offer workshops ("academies") in sustainable development live on Facebook to groups of children and other young people everywhere.