The Global Environment Facility is the official UN funding mechanism for environmental projects in the developing world, with most of the funds coming from developed countries. The facility is based in the offices of the World Bank in Washington DC, one of GEF’s three implementing agencies. The other two are the UN Development Programme and the UN Environment Programme. GEF’s website provides information on current projects and gives guidance on how to apply for funds. Funding is based on the principle of incremental costs - the difference in costs between a more polluting project, and an environmentally-friendlier but more expensive one.