More Environment News Stories

Shipping containers are put in place along the U.S.-Mexico border in Cochise County.

Forest Service warns about dangers of shipping container wall

The state is placing the barriers in the Coronado National Forest.

John Farley, director of fire test operations at the Naval Research Laboratory, tests the effectiveness of aqueous film-forming foam by spraying it on a gasoline fire. The test took place at the laboratory in Chesapeake Beach, Md. Oct. 25, 2019.

UArizona Health Sciences receives grant to study PFAS mitigation in firefighters' blood

Arizona Board of Regents grant will further an Australian study that could minimize forever chemicals' impact on health.

A pond at Reid Park.

Tucson Parks and Recreation looks for feedback on Reid Park remodel

The Reid Park Master Plan Concept reveals a design centered on biodiversity expansion.

Updated recovery plan for Mexican wolves aims to reduce human-caused deaths

The plan aims to further protect the endangered wolves through increased law enforcement, education and outreach to communities near where the wolves live.

Protests against the Resolution Copper mine near Oak Flat have been going for years, as shown in this 2015 file photo from a rally at the Capitol.

Tribe continues fight against proposed Arizona copper mine

The Arizona Court of Appeals ruled Tuesday that the state Department of Environmental Quality illegally issued a Clean Water Act permit for the proposed Resolution Copper Mine.

Two Sandhill cranes fly above their wintering grounds in Cochise County. Experts from the Arizona Game and Fish Department estimated more than 27,000 individuals were in the area in January 2020.

Sandhill cranes return to wintering grounds in southeastern Arizona

People can watch from home on AZ Game and Fish live stream.

The revived "heritage" stretch of the Santa Cruz River now flows north of Starr Pass/22nd Street all the way to Congress Street.

Insects find a new home on Santa Cruz River

It has been two years since a new species has moved to the area.

Water levels are at record lows and still dropping in the nation's largest reservoirs. The federal government began the process of restricting water releases from Glen Canyon Dam, which holds back a shrinking Lake Powell.

Feds want the ability to cut back on Colorado River reservoir releases over the next two years

On Friday, the Interior Department began the process of revising existing guidelines for water management in the Colorado River basin.

Jessie Dwyer, biodiversity manager at McDowell Sonoran Conservancy, demonstrates how a transmitter and GPS tracker are affixed to the wild tortoises in the study. Photo taken Sept. 30, 2022, in Scottsdale.

Slow, steady and high tech: Study using GPS to track Sonoran desert tortoises

Sonoran desert tortoises can hold water for up to a year, Rubke said. That matters given that Arizona is in a megadrought.

Strong Arm, a well-known saguaro cactus in the Tortolita Preserve near Marana, was estimated to be 150 to 200 years old and 40 feet tall when it toppled during an August storm. But the actual cause of death was Erwinia cacticida, a bacteria that causes saguaros to rot and ooze a thick, black liquid.

Iconic Strong Arm was one of many saguaros killed by climate change, deadly bacteria

For close to two centuries, Strong Arm stood sentinel over the Tortolita Preserve near Marana.

Fencing and signs like these near Dragoon, Arizona, aim to keep people away from some of the state’s estimated 100,000 abandoned mines. Minerals from such mines, many abandoned decades before environmental laws imposed clean-up requirements on mine owners, can leach out and pose a threat to nearby waterways. (File photo by Nicole Neri/ Cronkite News)

‘Good Samaritan’ bill aims to allow cleanup of abandoned, leaking mines

A bill in Congress could help Arizona clean up old mines.

The Central Tucson Groundwater Treatment System, located near Davis Monthan Air Force Base, removes PFAS contaminates from the aquifer below the area.

The Buzz: Dealing with Arizona's PFAS problem

Why are the chemical class also known as forever chemicals so dangerous, and what's being done to fix the problem?

The Milky Way seen from Reddington Pass east of Tucson. May 2022

First-ever 'Oracle Dark Sky Cultural Festival' is this week

Residents embrace the economic boost to the town.

An ore cart, encrusted in invasive mussel shells, rests on a ledge above a receding Lake Powell.

‘It’s getting close’: As the megadrought grinds on, Arizona working to meet water demands

Satellite photos show a dramatic change.

A diamondback rattlesnake flicks its tongue.

Rattlesnakes and toads out during monsoon season

Herpatologists get plenty of rattlesnake calls in August.

Treated wastewater, like this sample in Carson, California, could soon become a bigger part of the West's water portfolio. Cities in the drought-stricken Colorado River basin are putting big money behind project

Water managers see promise in recycling sewage

It could be a solution for the shrinking Colorado River

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