africa: Tourism trashes ecological hotspots

Ecotourism is touted as a boon to the environment; poor locals working as guides and hoteliers will no longer exploit natural resources for survival. But tourists leave a lot more than footprints, according to a study announced at the fifth World Parks Congress in Durban, South Africa. Biodiversity hotspots, home to extraordinary numbers of species, are worst hit. Water siphoned for tourism can upset finely balanced ecosystems. Once natural treasures are destroyed, tourists depart forever, leaving local peoples in worse shape than before the travel boom.