conservation

Tribal biologists in northern California say two critically endangered California condors could be tending an egg which would produce the region’s first fledgling in more than 100 years.

Arizona wildlife managers say consistent growth in the Mexican gray wolf population could trigger the species' downlisting under the Endangered Species Act.

A new poll of Arizona voters shows overwhelming support for public lands and opposition to the rollback of environmental laws.

A US House committee has approved a measure that would delist the endangered Mexican gray wolf. But critics worry it would doom the species.

The move, by the Colorado River Indian Tribes in Arizona and California would give rights of nature to the water, marking a historic first.

The number of monarch butterflies spending the winter in western states like Arizona and California dropped dramatically even as federal officials move to extend protections for the pollinator.

A federal judge rejected a challenge from some of Arizona's top Republicans to undo the designation of the Baaj Nwaavjo I’tah Kukveni - Ancestral Footprints of the Grand Canyon National Monument.

The American Library Association awarded Flagstaff author Kevin Fedarko with the prestigious Carnegie Medal for Excellence in Nonfiction for “A Walk in the Park: The True Story of a Spectacular Misadventure in the Grand Canyon."

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.

Advocates for limits on indiscriminate outdoor lighting that obscures night skies worldwide are recognizing efforts by an oil and natural gas developer to reduce scattered light in New Mexico.