The Grand Canyon and the Colorado River
Big changes in the river corridor over the last 150 years
CD-7 GOP Showdown
The four Republican candidates running for United States Representative in Congressional District 7 in Arizona face-off in special one-hour program.
Arizona Fireworks Laws Among Strictest in Nation
Most fireworks are off limits, and a new law allowing sparklers isn’t in effect yet.
High Levels of Ground-Level Ozone Return to Pima County
Now that summertime temperatures have ramped up and the sun is shining bright, ground-level ozone is again forming, sometimes in levels high enough for a pollution advisory for sensitive people.Prescribed burn in Rincon Mountains
Tucson residents may see smoke rising from the mountain range east of town.
RTA puts plans on hold to assume Sun Tran.
Agreement with the City of Tucson hits a roadblock.
Young Bark Beetles in Love
What spells romance for the average bark beetle? Mark Duggan looks at the research being done to better understand the world of these insects, information that can help to control the threat they pose as pests.
"Beat the Peak" Water Conservation Program Underway
Tucson Water has kicked of its annual "Beat the Peak" water conservation campaign, but the message for 2010 goes beyond the typical focus of reducing summertime water use.
Solar Energy and Water Concerns
Solar energy is a natural for Arizona, but is there a drawback? Some people say generating power from the sun can use too much water and Arizona can't afford that.
U.S. Representative addresses SB 1070, solar energy, health care and other topics.
Congresswoman Gabrielle Giffords joins us on the weekly roundtable to discuss various issues that are important to residents of Southern Arizona.
