Conservation groups sue to protect habitat for imperiled Mount Graham red squirrel

Conservation groups sued the Trump administration last week saying the U.S. Forest Service and U.S. Fish and Wildlife Service have failed to adequately protect the imperiled Mount Graham red squirrel. 

No end in sight for Asarco copper strike, but critical ruling lies ahead

The strike against Tucson-based copper producer Asarco by unions representing about 1,800 workers in Arizona and Texas is in its eighth month, with no talks underway or planned.

Researchers say there are positive benefits to wildfires

Researchers at the University of Arizona said some fire is necessary to create habitats.

Impact of monsoon after wildfires

Researchers at the University of Arizona said it's because stabilizing materials for the ground, like plants and trees, are burnt.

Banner experts: How smoke from fires can affect your health

With the onset of the Big Horn and Tortolita wildfires in Pima County, Banner – University Medicine experts share tips on how to protect yourself, family and pets from smoke and reduce exposure.   

Tucson Electric Power gets an earful about how to cut greenhouse gases

Tucson Electric Power is far more dependent on fossil fuels than the average U.S. electric utility.

University of Arizona to host final round of American-Made Challenges Solar Prize competition

The University of Arizona Center for Innovation has been chosen to partner with the Department of Energy’s National Renewable Energy Laboratory to fast track the creation and manufacturing of American-made solar technologies.

Dual-use solar farms welcome nature back to the land

Most ground-mount solar projects built in the United States are on gravel, turf or dirt. And therein lies the Catch-22 of solar projects. The draw of solar is its ability to provide clean power that preserves beautiful landscapes that are in danger from coal mines, oil wells and fracking.

Partnership Provides Crucial Firewood to Hopi and Navajo Homes

Closures due to the COVID-19 pandemic have made it difficult for tribal members to collect and transport firewood from nearby forests for cooking, boiling water and heating.

The Curious Case of the Giant Boole

One of the biggest trees in the world—the Boole—is thriving despite a devastating logging in Converse Basin, a massive sequoia grove 60 miles east of Fresno. The bigger mystery is why it was named for the man who supervised the forest’s destruction.

Bighorn Fire nearly out but ecological trouble lies ahead

Firefighters have mostly contained the Bighorn Fire, which has consumed more than 119,000 acres of the Santa Catalina Mountains since a bolt of lightning set the blaze off on the night of Friday, June 5.

Agrivoltaics works better with leafy greens, root crops

U.S. researchers have created a new model to assess the overlap between solar potential and underlying land use. The areas with the largest potential are the western United States, southern Africa, and the Middle East. The researchers concluded that croplands, grasslands, and wetlands are the top three land classes for PV projects linked to agricultural activities, while barren terrain, traditionally prioritized for solar PV system installation, ranked fifth.