Two billion people in the world have no access to drinking water. Many families have no other option than to boil water over an open fire using the simplest of methods. This results in CO2 emissions and, depending on the region, the deforestation of increasingly larger areas. By repairing damaged wells and drilling additional boreholes, the project in Malawi ensures that the people regain access to clean drinking water. As a result, less firewood is needed for water purification, and CO2 emissions are avoided.