Sustaining the San Pedro River
A panel in Bisbee discusses the present and future of Southern Arizona's last large, free-flowing river.
Border Wall to Go Up in National Monument, Wildlife Refuge
DHS has again waived environmental laws to build more barriers along the southern border.
Heat Waves, Fires Affect Mexico City’s Air Quality
The air quality in cities like the capital are getting worse due to fires in the southern part of the country.
Fire Managers Setting Prescribed Burns This Week
National Park Service to ignite 500-plus acres east of Tucson.
Study Finds 96 Percent Of National Parks Have Significant Levels of Air Pollution
The study also found that climate change is a significant concern for most national parks.
Grijalva Pushes to Modernize 147-Year-Old Mining Law
The U.S. representative from Tucson is spearheading an effort to reform the nation's hard-rock mining laws.
'Bike Ranch' Proposed Across From Saguaro National Park East
The Pima County Board of Supervisors will vote later this month whether to approve the development in the park's buffer zone.
Trump Administration Seeks to Build Border Wall Across Protected Lands
Environmental groups say a new wall would further endanger wildlife and habitat along the border.
Coronado National Forest to Increase Recreation Fees
Starting later this year, the cost of entrance at sites like Sabino Canyon or Madera Canyon will go up.
State Seeks Public Comment on Proposed New Interstate
The Arizona Department of Transportation has released its preferred route for a new interstate from the Mexican border to north of Phoenix.
Local Water Utilities Fight Unregulated Contaminants
While the EPA weighs regulating the chemicals, Tucson and Marana Water are moving ahead with treatment.
Climate Change Making Southwest Hotter
A UA professor lays out the changes for congressional committee.
Proposed Arizona Highway I-11 Generates Support, Opposition
Some are calling a smart step toward boosting trade, while others say it's unnecessary and warn of its environmental impact.
Desert Museum Welcomes Ocelot Kitten
Pictures of the kitten were headlined "cuteness overload" on social media.
Tohono O'odham Nation Establishes Youth Conservation Group
Congress passed a bill that created the Indian Youth Corps in March.
