Billions of people worldwide burn animal dung, crop residues, wood and charcoal to cook their meals. And the chemicals produced and inhaled sicken or kill millions. At particular risk are women who prepare their families’ food and children 5-years-old or younger.
Up to now, most interventions have focused on improving the cookstove to lower emissions. And that would be fine, if there were enough improved cookstoves to go around. But there aren’t. In 2012, only 2.5 million improved cookstoves were distributed, improving the household air pollution situation for exactly one-half of 1 percent of the world’s biomass burners.