When lakes started to dry up and streams seemed to disappear, a woman decided to bring the forest back and planted a million trees. Wangari Maathai is the founder of the Green Belt movement in Africa and the recipient of a Nobel Peace Prize. In this episode, you will learn about one of the most inspiring activists and environmentalists of our time. The host of this episode is the American philanthropist Melinda Gates. This episode was produced by Francesca Cavallo and Elena Favilli, written by Annalisa Merelli, with sound design by Elettra Bargiacchi.