or so people rely on open fires and simple stoves that burn solid fuels like wood, animal dung, and coal to cook their food.

people die prematurely every year from illnesses attributable to household air pollution caused by cooking with solid fuels.

or so of black carbon emissions come from burning solid fuels for household energy needs.

in annual costs to health, environment, and economies in the developing world are due to the use of solid fuels for cooking.