It's useless to tell a starving man to grow corn and "Don't cut the trees" won't do a thing for the environment when there's no alternative. Solar cooking is the solution in Central Africa where there's plenty of sun and little firewood. But there's another benefit. In the countryside there are few villages. People live in scattered clay houses miles apart. Solar cooking associations give them a reason to get together. In fact, they were so inspired by Cally's work on their behalf that they wrote a song for him and performed it when we arrived.