Environment

Fewer than 2% of North America’s bark beetle species attack trees, but those that do have killed billions of conifers across the West over the last 30 years.

A new paper coauthored by Northern Arizona University scientists proposes solutions for the decline of the Great Salt Lake in Utah. The lake’s level has dropped about 4 inches a year since the 1990s.

A coalition is working to add federal protections to the Upper Verde River and Sycamore Creek via a Wild and Scenic River designation. It's threatened by groundwater pumping and long-term drought.

President-elect Donald Trump and his transition team named outgoing North Dakota Gov. Doug Burgum to lead the agency that manages the nation’s natural and cultural resources.

Biologists have begun re-introducing endangered black-footed ferrets in Aubrey Valley near Seligman. It's Arizona’s first ferret reintroduction in more than 30 years.

A report from the Sierra Club’s Grand Canyon Chapter warns parts of the Upper Verde River could go dry within the next two decades if water use trends continue.

A new study of aspens on the San Francisco Peaks shows they’re struggling to grow to full-sized trees. But Northern Arizona University forest ecologist Mike Stoddard has a surprising solution: asking hunters to help.

An analysis from the nonprofit Environmental Defense Fund says up to a quarter million wetlands in Arizona may have lost federal clean water protections.

More than a hundred people gathered Saturday at Red Butte south of the Grand Canyon to protest the mining and hauling of uranium ore. It’s the latest in a string of Indigenous-led protests calling for the closure of the Pinyon Plain mine.

Environmental groups and Havasupai tribal members presented a petition to Arizona Gov. Katie Hobbs Thursday urging her to close the Pinyon Plain uranium mine, less than 10 miles from Grand Canyon National Park.