A new study suggests jaguars could be successfully reintroduced to parts of their historic range in Arizona and New Mexico, where the large cats were wiped out by humans decades ago.
Research examining how water flows in Grand Canyon springs could shed light on understanding the link between ground water and surface water in the Colorado River system.
Last year, Colorado lawmakers pointed a finger at what they consider a growing threat: speculative investments in water rights. Since then, a state work group has been examining the issue, and the process raises questions about how the West divvies up water.
WASHINGTON - It's important to have boots on the ground when battling wildfires, and state officials will soon be able to put 1,400 more boots on the ground - in the form of up to 700 prison inmates, who will be used to do forest maintenance under a new law.
WASHINGTON - The Oak Flat copper mine battle has gone from an environmental to a religious fight, with groups ranging from the Sikh Coalition to the Church of Jesus Christ of Latter-day Saints backing a White Mountain Apache claim that the mine will destroy sacred lands.
Arizona had one of its driest monsoon seasons on record last year, which will directly impact wildfires this year. Experts predict this could be another big year for fires across the state.
WASHINGTON - Think globally, act locally, as the saying goes, and 10 Arizona cities are taking the message to heart Thursday to mark the 51st annual Earth Day, planning everything from tree plantings to community cleanups.
Twenty-one years of drier, warmer weather have left Lakes Mead and Powell at historically low levels, and the first official shortage declaration from the Department of the Interior is almost certain later this year.
PHOENIX – A new NREL study finds that LA could eliminate fossil fuels from its power grid by 2035. The Palo Verde Nuclear Generating Station west of Phoenix is part of the solution, but critics say it's a temporary solution to meet climate goals in both California and Arizona.
TUCSON - University of Arizona Ph.D. student Ganesh Marin discovered a young male jaguar lurking along the Arizona-Mexico border.
With temperatures rising and precipitation falling, it's likely drought conditions across the West will worsen.
WASHINGTON - Superior's mayor testified that the Pinal County town would suffer a "devastating" blow to its economy if Congress canceled a massive copper mine at Oak Flat - a move opponents say must be done to protect the environment and sacred sites there.