Scientists study Lake Powell sediments to see how climate change, humans are affecting the water
(Brian Maffly | The Salt Lake Tribune) Scott Hynek, a hydrologist with the U.S. Geological Survey, displays a sediment core extracted from the bed of Lake Powell. He is pictured in a makeshift structure, called the Core Shack, his team built on the barge deck for processing the 212 3-meter-long cores recovered in the monthlong drilling operation in November.

Scientists study Lake Powell sediments to see how climate change, humans are affecting the water

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