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
Subnetwork Access Protocol necessary to determine which protocol is to be invoked to process a service data unit delivered by the lower layer. The most common reference to SAP, including a Source Service Access Point (SSAP) and a Destination Service Access Point (DSAP) refers to the boundary between the Data Link Layer and the Network Layer. It is common to think of SAP only in terms of its use at Layer 2, specifically in its Logical Link Control (LLC) sub-layer as defined in the IEEE 802.2 standards. Link Service Access Point (LSAP) includes both Destination Service Access Point (DSAP) and Source Service Access