Pima County Ground-Level Ozone Safe, But Just Barely
More than a year ago the EPA decreased the level it considers safe for public health.
Arizona Land and Water Trust Wins National Award
Recognized for its work on water issues and land preservation.
Treated Water to Make Beer? Tucson Group Says 'Cheers!'
Pima County team fights stigma against reclaimed water; finalist for innovation distinction.
Feeding Our Future: The Manzo Model for Growing a School Garden
In an age of shrinking education budgets, should school gardens be a line item?
Visitors Flock to Arizona State Parks in Record Numbers
Nearly 3M tourists spent more than $16M at the parks, which lost some funding in 2012.
Feeding Our Future: Putting Native Foods Back on the Plate
Why did the Tohono O'odham stop eating and growing their Native foods?
San Carlos Apaches, Others Sue Over Copper Mine Waste Site
Lawsuits claim US Forest Service violated several environmental laws.
Arizona Tribes in Solidarity over Stopping North Dakota Pipeline
For many tribal members in the state, the conflict hits close to home.
Study: Saguaro Survival Sign of Climate Change Effect
Scientist connects age of saguaros with volcanic activity that changed temperatures.
The Arizona Trail Opens New Paths for Tucson Resident
Accident leads to exercise and new discoveries
Saguaro Park Seeking Help with Buffelgrass Removal
The invasive, non-native plant spreads quickly in the Sonoran Desert.
$85M Allotted for Navajo Uranium Mine Cleanup
400 abandoned mines run by many companies now out of business.
Greenhouse Gas Surprise in Colorado River Pulse Flow
100,000 acre-feet released into delta had unexpected side effect, scientist says.
Public Meetings on Uranium Mining Near Grand Canyon
State agency schedules three gatherings to take comments on permit proposals.
Rillito Anti-Flood Measures Troubling for Some Tucsonans
The project aims to mitigate future flooding but strips riverbed vegetation to do so.
