Namibia and South Africa share the Succulent Karoo Biome - one of only two arid biodiversity hotspots in the world. The South African side of the biome has been used more intensively than the Namibian side, revealing what happens to this ecosystem under different land uses. Recent scientific results from South Africa present a cautionary tale for Namibia, especially as we consider the future of Tsau //Khaeb (Sperrgebiet) National Park.