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Officials Warn Tucson Residents of Early Wildfire Threat

Drought conditions have brought early fire warnings to Tucson; U.S. Drought Monitor has most southeastern part of AZ at 'severe drought.'

Governor Jan Brewer discusses multiple topics about Arizona.

Brewer Approves Master Energy Plan for Arizona

EmPower Arizona aims to increase solar, educate energy professionals, position state as global leader in industry.

Controversy Continues to Mount Over Bighorn Sheep Release

Efforts to return species to Santa Catalinas has wide opposition after lions kill sheep, game agents kill lions.

The sun sets in the Arizona desert wilderness.

Wilderness Act Celebrates 50, Its Effects on National Parks Since

Credited with protecting millions of acres of federal land across the U.S.; celebration taking place at Sabino Canyon in Nov.

Tucson Audubon Society makes nests like these to help house native species of birds in sections of Tucson's urban areas.

Local Group Looks Into Nest Boxes to Help Urban Birds

Tucson Audubon Society's pilot project explores whether such would be a good idea for some species, known to use cavities for nests.

AZ Week: Sides Weigh in on Bighorn Sheep Controversy

Efforts to return species to Santa Catalinas has wide opposition after lions kill sheep, game agents kill lions.

Davis Monthan AFB goes solar

Davis-Monthan Opens Largest Solar Panel Array in US Armed Forces

Project began in 2010 under a contract with SunEdison; the biggest on any defense department operation.

A time lapse photograph of light pollution from Tucson reaching the Picacho Peak night sky.

AZ Bill Would Prohibit Local Gov Energy Efficiency Mandates

Some astronomers say it could affect efforts to protect dark skies as it would block government from requiring low-intensity outside lighting.

Rosemont Mine proposed site in the Santa Rita Mountains

Rosemont Mine Formal Objection Period Nearing Its Close

Public can weigh in on proposed mine until Feb. 14, ending a 45-day period for response to Coronado National Forest's environmental impact statement.

Game & Fish: 2 One-Month-Old Bighorn Lambs Alive in Catalinas

Arizona's efforts to re-establish desert bighorn sheep has had rough beginning, now comes an optimistic sign for herd.

Water levels at the Colorado River Basin.

CO River Relatively Young in Geological Time, Scientists Say

Arizona Geologists discuss fascination with origins, evolution of state's most famous river, water source.

Game & Fish Confirms Death of 10th Bighorn Sheep

31 of them released into Santa Catalina Mountains in Nov.; awe's cause of death being investigated, officials say.

This Alligator Gar is just one of the many unique and strange marine animals that Zeb Hogan has encountered in his work as a ecologist.

Former UA Biology Student Aims to Conserve Freshwater Fish

Zeb Hogan, now host of "Monster Fish" on National Geographic Channel, explores rivers all around the world.

Another Bighorn Sheep Dead, Game & Fish Says

Dept. announces Friday animal may have been killed bobcat or young mountain lion; brings total of deaths to 9.

Federal Land Payment Elimination Costs Pima County $3M

County provides services on U.S. owned land, but isn't getting reimbursed for cost of services.

We learn about Arizona's rich geological history with Senior Geologist at the Arizona Geological Survey, Jon Spencer, Ph.D.

AZ Landscape As Old As 30 Million Years, Geologist Says

The geology of Arizona has changed dramatically over time; state geologist discusses details.

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