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The Effects of Climate Change on Water in South Africa and Tibet
September 24, 2010 By Shawna CuanFrom Hydrology and Earth System Sciences Discussions, “Uncertainty in Water Resources Availability in the Okavango River Basin as a Result of Climate Change,” by D.A. Hughes, D.G. Kingston, and M.C. Todd, explores the effects of a two degrees Celsius global warming scenario on the Okavango River Basin, a “major natural resource for human water supply” shared by Angola, Botswana, and Namibia. The authors conclude that “there is a relatively high probability of large changes to the extent and duration of inundation within the delta wetland system during the 21st century,” and recommend multi-annual to decadal ecological assessments of assumed low rainfall and river flow to guide integrated river basin water management plans.
“Climate Change and Environmental Degradation in Tibet: Implications for Environmental Security in South Asia,” by P.K. Gautam in Strategic Analysis, argues for Tibet’s designation as a regional – if not global – common, for the sake of South Asian security. Tibet faces significant risk of ecological degradation due to climate change. Further degradation of its water supply would significantly affect India, China, and Southeast Asia. According to Gautam, establishing Tibetan autonomy would ensure greater ecological preservation, contrary to the rapid development model pursued by China.
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