Four in every five people in Africa cook using wood, charcoal and other polluting fuels in open fires or inefficient stoves. This releases harmful pollutants and leads to respiratory illnesses and heart disease, particularly among children. Four in every five people in Africa cook using wood, charcoal and other polluting fuels in open fires or inefficient stoves. This releases harmful pollutants and leads to respiratory illnesses and heart disease, particularly among children. Environment Phys.org – latest science and technology news stories