Global Environment Facility change. The GEF supports projects in forest conservation (primarily protected areas and buffer zones), sustainable use of forests (forest production landscapes, sustainable forest management), and addressing forests and trees in the wider landscape. Ozone depletion: Increased UV-B radiation reaching the Earth would pose risks to human health and the environment. In response, countries negotiated and adopted the Vienna Convention for the Protection of the Ozone Layer in 1985, and the Montreal Protocol on Substances that Deplete the Ozone Layer in 1987. The GEF supports projects in developing countries and countries with economies in transition (CEITs) that are not eligible for
Montreal Protocol and HCFCs. Thus, in 2009, a study calculated that a fast phasedown of high-GWP HFCs could potentially prevent the equivalent of up to 8.8 Gt CO2-eq "per year" in emissions by 2050. A proposed phasedown of HFCs was hence projected to avoid up to 0.5C of warming by 2100 under the high-HFC growth scenario, and up to 0.35C under the low-HFC growth scenario. Recognizing the opportunity presented for fast and effective phasing down of HFCs through the Montreal Protocol, starting in 2009 the Federated States of Micronesia proposed an amendment to phase down high-GWP HFCs, with the U.S., Canada, and