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.”
Researchers say they footprints pre-date dinosaurs, and originate from a time when the earth’s land was assembled into the supercontinent Pangea.
Face masks, gloves and other discarded personal protection equipment are a growing concern among environmentalists as an emerging source of litter.
The Supreme Court refused to hear a case by four environmental groups trying to halt the construction of the border wall.
Get the facts on where wildfires are burning throughout the state, how 2020 stacks up to previous years, and the toll these fires take on the environment.
Mark Kelly makes gains in Senate race, sacred site desecrated by border wall construction, and list of ethics complaints at state Capitol grows: it's news you can use.