After a record-breaking 2020, experts predict 2021 will offer little relief, which could have devastating results for Arizona.
Tucson's BioDome2 is showing researchers that the rainforest can handle rising temperatures better than initially thought.
President-elect Joe Biden vowed to oppose oil drilling in the Arctic National Wildlife Refuge. In the countdown to inauguration, Trump’s White House is doing all it can to ensure it happens.
The White House has been blocked by lower courts for attempting to use military funds to construct a wall at the US-Mexico border.
The 84-acre Rio Verde Ranch is now part of the Prescott National Forest, thanks to the efforts of conservation nonprofit Trust For Public Land.
The agency's west coast office will focus on tracking and cleaning up abandoned mines, a particular problem in Arizona's history of uranium excavation.
The Rio Reimagined project aims to connect residents to the river "through ecosystem restoration, flood mitigation and economic development.”