As we rethink our energy use, we focus on the highest polluters, and at a global scale. But energy use at a much finer scale seriously threatens the health and safety of hundreds of millions of people who still cook on inefficient wood stoves in developing countries. Berkeley professor Ashok Gadgil and his students launched the Berkeley Darfur Stove project to design and build efficient and inexpensive stoves. They then created a non-profit to manufacture the $20 stoves in Mumbai. The stoves’ efficiency halves the fuel wood to cook each meal, and the time needed to collect it. Women purchasing fuel wood saved about $260 per year. Series: "Cal Future Forum: Our Changing World" [Science] [Show ID: 33083]