This project, funded by Sebastian and Stefan, benefitted 2,973 people at a cost of 5.21USD per person. The initial grant of 76,000RMB was supplemented by a local contribution of 29,350RMB, which allowed for the purchase of additional solar cookers (587 in total). Rural households in Qinghai and Gansu provinces are characterized by the use of inefficient, polluting energy sources such as animal dung, straw, wood, and sod. The implications of such on the health and safety of family members in rural households, particularly very young children and women and girls, is so serious that indoor air pollution is now rated by the World Health Organization as the second most dangerous environmental health risk in rural areas (after dirty water and poor sanitation). These solar cookers have lessened this health risk for nearly 3,000 people and, in addition, have reduced the collection of organic materials, benefitting the local environment.