Amy Smith shares simple, lifesaving design for charcoal making | Video on TED.com

Fumes from indoor cooking fires kill more than 2 million children a year in the developing world. MIT engineer Amy Smith details an exciting but simple solution: a tool for turning farm waste into clean-burning charcoal. About Amy Smith Amy Smith designs cheap, practical fixes for tough problems in developing countries. Among her many accomplishments, the MIT engineer received a MacArthur "genius" grant in 2004 and was the… Full bio and more links