Aisata Ibamie, right, a young renewable energy engineer and innovative clean energy activist from Cameroon, demonstrates how her ASAAB Thermal Cooker is used. (Photo courtesy Aisata Ibamie)
Most people in sub-Saharan Africa still use a wood fire to cook food. Aisata Ibamie, a young renewable energy engineer from Cameroon, has a low-tech solution to reduce indoor air pollution and save trees.