Energy use is essential to meet our most basic needs: cooking, boiling water, lighting and heating. It is also a prerequisite for good health, a reality that has been largely ignored by the world community. Left behind by development, more than 3 billion people still burn wood, dung, coal and other traditional fuels inside their homes. The resulting indoor air pollution is responsible for more than 1.5 million deaths a year, deaths that mostly fall on young children and their mothers. Moreover, indoor air pollution and inefficient household energy practices represent a stumbling block on our road to achieving the Millennium Development Goals. This publication summarizes the health impacts of household energy and gives an overview of past and future trends in solid fuel use and describes solutions to promote health and development in the context of the household energy challenge.--Publisher's description.