Regional environmental groups ask courts to reconsider EPA approval of pesticide.
The petition was filed in the Ninth Circuit.
World Water Day: Tucson's history with water
This year's World Water day theme is accelerating change.
Winter moisture expected to yield big wildflower bloom in Arizona
Experts say conditions lined up to produce massive floral displays in lower elevations.
Bobcat Encounters in Southern Arizona: One Animal is Killed
Investigators are offering a reward of up to $500 in one case
USDA awards $930 million towards wildfire preventions
Three million acres of the San Carlos Apache Tribal Forest Protection Project will receive funding.
More than 41,000 sandhill cranes in Southern Arizona
Arizona birders can see the cranes in person at the annual Wings over Willcox Bird & Nature Festival.
Tucson Parks and Recreation looks for feedback on Reid Park remodel
The Reid Park Master Plan Concept reveals a design centered on biodiversity expansion.
Sandhill cranes return to wintering grounds in southeastern Arizona
People can watch from home on AZ Game and Fish live stream.
Insects find a new home on Santa Cruz River
It has been two years since a new species has moved to the area.
Arizona state fish might soon shed endangered designation
The Apache Trout was first listed as endangered in 1973.
Here's how to help prevent wildfires this summer
Just over half of wildfires in the Southwest are human-caused.
Inbreeding won’t doom the endangered vaquita marina — but fishing nets might
Research now finds that, genetically speaking, there is still hope the vaquita population can recover.
Conservation group says waters less risky for endangered vaquita porpoise
The group partnered with the Mexican Navy to bring down the number of fishing nets in Mexico's Vaquita Refuge
Senate votes to make Arizona monument a national park
Chiricahua National Monument encompasses more than 12,000 acres.
Longfin dace return to lower Santa Cruz River
The dace were last in the area over a century ago.
