Scientists struggle to preserve Grand Canyon wildlife
Submitted by Mark Wolinski, Made Popular: February 18, 2010 at 07:00 AM • gadling.com
The Grand Canyon needs more water. That's the assessment of a U.S. Geological Survey report that studied the results of a 2008 experiment. A controlled flood let more water through Glen Canyon Dam in order to replicate the effects of annual flooding from before the dam was built. Sediment from the flood increased the size of sandbars along the path of the river.
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