environment

Glen Canyon National Recreation Area

Lake Powell on the Colorado River is expected to drop to a record-breaking new low in the next day or two. KNAU’s Melissa Sevigny reports, the reservoir will reach its lowest elevation since it was first filled.


Melissa Sevigny

Streets in east Flagstaff filled with mud and debris this week as flash floods poured down from the Museum Fire scar. The two-year-old burn scar is a study site for scientists at Northern Arizona University, who want to know how forests will recover from wildfires in a warmer, drier climate. Just before the flooding, KNAU’s Melissa Sevigny took a tour of the spot to learn about the experiment.


Ryan Heinsius / KNAU

Conservation groups are urging Arizona regulators to deny a key permit for a uranium mine near the South Rim of the Grand Canyon. They say it threatens the area’s environment and tribal water resources. KNAU’s Ryan Heinsius reports.


Ryan Hagerty / USFWS

The U.S. Fish and Wildlife Service plans to expand the area available for black-footed ferret reintroductions throughout northern and southeastern Arizona as well as parts of New Mexico and Utah. KNAU’s Melissa Sevigny reports on how the plan is meant to help the endangered animal.


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It’s estimated that more than seven hundred thousand Native Americans in the U.S. are living without access to clean and reliable water.  A recent report from the Water & Tribes Initiative surveyed thirty tribes in the Colorado River Basin and found widespread problems with lack of water access and contaminated supplies. KNAU’s Melissa Sevigny spoke with the report’s lead author, Heather Tanana, a Navajo Nation citizen and assistant professor at the University of Utah.

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