By TONY DAVIS, Arizona Daily Star

The only jaguar known to still be living in the wild in this country was euthanized late Monday afternoon after being recaptured and found to have advanced kidney failure, Arizona officials said.

Imagine large-scale solar-power plants being built across the Sonoran Desert, along with power lines up to 300 feet high, to export the sun's power to the rest of the West.

A new federal rule took effect Friday, allowing people to carry loaded, concealed firearms in national parks in certain cases.
The rule has drawn two lawsuits. It's backed by many gun-rights groups, as well as the Bush administration, but is opposed by several groups representing current and former National Park Service employees.

TUCSON, Ariz. -- The decade ending in 2006 was the warmest such period in the Northern Hemisphere for at least the last 1,300 years and possibly longer, says a new study written by a University of Arizona professor and six other researchers.

PHOENIX, Ariz. -- It's 2048 in Arizona's Sonoran Desert. Do you know where your water is coming from?Thomas McCann, a top official with the agency that runs the Central Arizona Project, thinks he does. By 2048, he envisions:

TUCSON, Ariz. -- A symbol of Arizona's growth is the U-Haul, bringing in families pursuing sunshine, mountains, cheaper housing and jobs as they pile in from the Rust Belt or Southern California.

TUCSON, Ariz. -- The Southwest's current drought could be the start of the Dust Bowl-like future that some scientists have already predicted will come from human-caused warming.Or, it could just be another in the long line of natural, cyclical droughts in this region dating back 1,000 years.