The Global Environment Facility (GEF) prepared this report for the sixteenth session of the Conference of the Parties (COP16) to the United Nations Framework Convention on Climate Change (UNFCCC). The report consists of two parts and five annexes. Part I describes achievements of the GEF since its establishment in 1991 to date, including the activities approved and conducted by the GEF during the reporting period from July 1, 2009, to June 30, 2010. They include climate change mitigation, technology transfer, climate change adaptation, and enabling activities funded from the GEF Trust Fund, the Least Developed Countries Fund (LDCF), and the Special Climate Change Fund (SCCF). Part II of the report describes the conclusions of the GEF-5 replenishment, proposed reforms, and GEF-5 programming.