environment

Victor Leshyk and Katharyn Duffy

A new study published last week shows Earth’s ecosystems are fast losing their ability to soak up extra carbon from the atmosphere. Scientists collected data about how plants take up carbon all over the globe and found the warming planet could reach a critical tipping point in the next two or three decades, when many ecosystems no longer act as “sinks” for carbon and become sources instead. KNAU’s Melissa Sevigny spoke with lead author Katharyn Duffy of Northern Arizona University about her findings.

Ryan Heinsius / KNAU

A tribal group in Arizona has filed a lien and temporary restraining order to try to block a federal land exchange. They say a proposed copper mine threatens a sacred site on the Tonto National Forest. KNAU’s Ryan Heinsius reports.


Jerry McBride/The Durango Herald via AP, File

The Navajo Nation’s Department of Justice has settled with two mining companies to resolve claims stemming from a 2015 spill that sent wastewater downstream from the inactive Gold King Mine in southwestern Colorado.

  

Coconino National Forest

The U.S. Forest Service has released a long-awaited management plan for Fossil Creek in central Arizona, a popular recreation site which is home to many rare and threatened species. KNAU’s Melissa Sevigny reports.


Ryan Heinsius / KNAU

Friday morning the three smokestacks at the now-closed Navajo Generating Station will be demolished. It marks an end to the most striking visual reminder of coal power generation in the area. KNAU’s Ryan Heinsius reports.


AP Photo/Matt York

Government contractors are igniting dynamite blasts in the remote and rugged southeast corner of Arizona, forever reshaping the landscape as they pulverize mountaintops.

  

www.swmonarchs.org

The U.S. Fish and Wildlife Service has determined the monarch butterfly merits protection under the Endangered Species Act, but it won’t be listed immediately. KNAU’s Melissa Sevigny reports.


azoffroad.net

A judge has ruled that allegations of political interference in the federal handling of a home development proposal in southern Arizona warrant the public release of several confidential records.

Ryan Heinsius / KNAU

A controversial federal land exchange to build a copper mine on the Tonto National Forest could take place a year ahead of schedule. It’s one of several expected federal acts during the final weeks of the Trump administration. KNAU’s Ryan Heinsius reports.


APS

Federal regulators say they and the operator of an Arizona nuclear power plant have resolved apparent violations involving safe handling and storage of spent nuclear fuel, which is high-level radioactive waste.

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