Hybrid Cars Make 'Clean Air Blue Skies' Eligibility
Six vehicles designated by state transportation officials to get plates allowing single-occupancy in HOV lanes.
Parts of Pima County Under Citrus Quarantine
Presence of an insect that can carry disease found in region.
Bighorn Sheep Release in Santa Catalinas Closed to Public
Arizona Game and Fish spokesman says they don't want crowd control issues, there are 'animal welfare concerns.'
More Bighorn Sheep Coming to Catalina Mountains
Second stage of controversial program to reintroduce animal to Tucson area.
Study Looks into Effects of Wastewater on Santa Cruz River
Sonoran Institute, local officials release initial report on water quality after recent upgrades to treatment facilities.
Orange Sludge Spill from Abandoned Mines Threatening Patagonia Lake
Local environmental officials say Asarco's cleanup efforts not good enough, cite company.
Interior Secretary Reinforces Glen Canyon Dam Preservation
Jewell says during recent visit cooperation of 7 Colorado Basin states key to save source of water, electricity to much of Southwest.
Initial Tests Show No Toxic Waste in San Pedro River
AZ Dept. of Environmental Quality sampled two areas Tuesday after alert that contamination from Mexican mine could potentially make its way north.
Increased Number of Training Flights Coming to Davis-Monthan
More air crews from global allies expected at Tucson Air Force base; noise increase minimal commander says.
Odile Veers to East, Sparing Tucson; Flooding in Nogales
Government, businesses were prepared, but worst never came about; much activity back to normal.
Long-Time Colossal Cave Director Uncertain About Her Future at Park
Pima County Supervisor Carroll called for performance audit last summer to assess management of park amid mountain lion shooting.
Solar a Central Issue in Corporation Commission Republican Primary
2 commission seats up for grabs; four GOP candidates seek their party's nomination, face off two Democrats.
Road to Grand Canyon West Now Paved
Project cost more than $30M; will ease access to canyon's Skywalk.
AZ Top in Nation for Solar Energy Per Capita
Study notes state policies such as Renewable Energy Standard have attracted more people to get clean energy; also pointed some setbacks in past year.
Part of Grand Canyon Bison Herd Recently Moved
19 animals taken back to their original home on Arizona Strip; more than 300 remain.
