Climate change, drought, and fires — all caused or worsened by human activity — are rewriting the future of ancient Sonoran ...

The Ramirez family's historic El Milagro Ranch in South Texas faces a new threat from U.S. Highway 83 development.

Tucson’s MLK Day celebration will be held from 10 a.m. to 3 p.m. Monday, Jan. 20, at the Reid Park Bandshell. A 3-mile ...

It took close to a decade to bring buffelgrass under control at the Waterman site through a sustained herbicide campaign led by Scheuring. Then, the focus shifted to making the disturbed land ...

The Desert Defender program also emphasizes mapping invasive species as a tool in managing their spread. Volunteers use a smartphone app to document the presence of invasive plants and assess their ...