25 April 2011 Updated at 22:14 ET
Climate change to reduce US West water supply - report
The Colorado River, which runs through the Hoover Dam, is expected to see a reduction in stream flow
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Scarce water supplies in the western US will probably dwindle further as a result of climate change, causing problems for millions in the region, a government report has said.
link-
http://www.bbc.co.uk/news/world-us-canada-13190689