colorado river

NPS

The superintendent of Grand Canyon National Park has announced his retirement. Dave Uberuaga will step down next month. As Arizona Public Radio’s Ryan Heinsius reports, the move comes after a federal investigation of sexual abuse within the park’s river district.

Dave Heramimtschuk-USGS/Freshwater Illustrated

Several species of aquatic insects are mysteriously missing from the Colorado River in the Grand Canyon. Scientists now know that’s because dam managers rapidly change the river’s level to meet electricity demand.


norcalblogs.com

The Navajo Nation and Hopi Tribe have been at odds for almost four decades about water rights to the Little Colorado River. Leaders of the tribes recently met with Arizona officials to revive attempts at a settlement. Arizona Public Radio’s Ryan Heinsius reports.


High Country News

The U.S. Department of the Interior says climate change is a growing threat to western water resources. A new report from the agency predicts Arizona and other states that depend on the Colorado River could face significant shortages in the coming years. Arizona Public Radio’s Ryan Heinsius reports.


Alan English CPA

 Government scientists have gathered data to answer the question of whether a new uranium mining operation will contaminate the Grand Canyon region.

Scientists with the U.S. Geological Survey spent two years collecting and analyzing soil samples from around the Canyon Mine near Tusayan. The study gives them a baseline of the environment they can use to compare with future soil samples.

The mine on U.S. Forest Service land was approved in the 1980s, but ore never was pulled from the ground.

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