House Speaker Andy Tobin is proposing his own alternative to Governor Jan Brewer's currently stalled plan to expand Medicaid. Arizona Public Radio's Howard Fischer reports.

A new poll suggests that if voters were asked about it now, gay couples in the state would be allowed to wed. Arizona Public Radio's Howard Fischer reports.

This week's rain storms brought the first precipitation in weeks to northern Arizona. KNAU's Gillian Ferris Kohl talks with meteorologist Lee Born about the rain and the summer weather forecast.

Those who manage and use reservoirs in the western United States are used to cycles of boom and bust: wet periods fill reservoirs, while droughts empty them. But as the Southwest enters what looks like an uncertain future of climate change, there's evidence that Lake Powell may be in for a particularly hard time.

Before Glen Canyon Dam and Lake Powell, native fish lived in the free-flowing Colorado River. They had unique physical adaptations that allowed them to thrive in the river's often murky water.

Two hundred miles upstream from Glen Canyon Dam, the Colorado River roars through Cataract Canyon in a rust colored tumult, thick with silt and clay. Each year, the Colorado and its tributaries carry, on average, some 61 million cubic yards of sediment into Lake Powell, enough to fill more than 200,000 railroad boxcars.

Legislation signed this week by Governor Jan Brewer will once again allow medical marijuana onto university campuses - at least in a limited fashion. Arizona Public Radio's Howard Fischer reports.

A new state law is designed to help keep taxi drivers who are high on drugs from getting behind the wheel. Arizona Public Radio's Howard Fischer reports.

Tom Hayden has been called the grandfather of the 1960s American Peace Movement.

What would you do if someone told you an asteroid was hurtling towards Earth?