Kenya has offered the world a new model for what an environmental movement can be, one that harnesses the power of thousands of hands. Even the hands of people with little means. In 2004 the Norwegian Nobel Committee recognized this new model and its founder, Kenyan scientist and environmentalist Wangari Maathai. In the first part of this special edition of Living on Earth, Ingrid Lobet introduces us to the basic mechanics of the Green Belt tree planting movement and its Nobel Prize winning founder.