RT null T1 World Atlas of Desertification: Second Edition A1 United Nations Environment Programme, K1 atlas K1 desertification K1 Africa K1 arid zone K1 climate K1 soil K1 soil erosion K1 vegetation K1 wind K1 water K1 population K1 Kenya K1 Southern Africa K1 Middle East K1 land use K1 North America K1 Mediterranean region K1 poverty K1 migration K1 Mexico K1 Australia K1 carbon sequestration K1 saline soil K1 dry farming K1 environmental protection K1 Senegal SN 0 340 69166 2 YR 1997 FD 1997 LK https://wedocs.unep.org/handle/20.500.11822/30300 UL https://wedocs.unep.org/handle/20.500.11822/30300 NO World atlas of desertification DS UN Environment Document Repository RD Sep 24, 2026