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The Colorado River’s Lake Powell from the north, taken by the International Space Station. A recent report claims climate change has played a larger role in declining river flows than previously thought. Photo/NASA, Creative Commons

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Report: Climate change a growing factor in fall of Colorado River

Researchers from University of Arizona and Colorado State University say rise in temperatures contributed to 20 percent decline in river's flow in last 14 years

There are many factors behind declining Colorado River flows, but climate change plays a larger part than previously thought and the threat will continue to grow if global warming is not addressed, a recent report says.