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Suckley's cuckoo bumble bee on a Gaillardia flower (Gaillardia aristata).

AZ bumble bee species could be added to endangered species list

Dec 17, 2024 A public comment period for the Suckley’s Cuckoo Bumble Bee is open Dec. 17.
Monarch butterflies are among the most popular in Arizona and across the United States.

Monarch butterfly population crisis sparks endangered species proposal

Dec 13, 2024 Public input sought on new proposal to protect monarch butterflies under Endangered Species Act.
A canal carries Colorado River water to farmland near Poston, Arizona, owned and operated by the Colorado River Indian Tribes, a key player in Arizona's Drought Contingency Plan.

Hobbs signs largest tribal water rights agreement in US history

Nov 20, 2024 The settlement is contingent on Congressional approval.
An electric school bus parked outside of John B. Wright Elementary School on Friday, Nov. 15, 2024. The Tucson Unified School District received $4 million from the Environmental Protection Agency to retire 10 diesel school buses, with ten electric school buses as an effort to lower greenhouse gas emissions.

TUSD gets $4 million EPA grant to replace diesel buses with electric fleet

Nov 15, 2024 Ten diesel buses are being replaced with electric models, reducing emissions and cutting costs.
Arizona Youth Climate Coalition members at the Tucson Unified School District Governing Board meeting in Tucson, Ariz., on Tuesday, Oct. 29, 2024. Local students showed support for the passage of the TUSD Climate Resolution Act, which was researched, written and lobbied by students aged 13-20.

Tucson Unified School District approves climate action plan led by students, targets net-zero by 2040

Oct 31, 2024 New policy prioritizes clean energy, sustainable practices and a comprehensive climate education.
The old border wall made of military landing platform that stood for years dividing Naco, Arizona, and Naco, Sonora.

Neighboring governors Hobbs, Durazo sign off on environmental plan to address cross-border air, water, waste and wildlife issues

Oct 25, 2024 New strategic plan prioritizes sustainable solutions for shared environmental challenges along the Arizona-Sonora border.
Saguaro cactus amid mid-afternoon sun.

Tucson is reaching record-setting temperatures this season

Oct 2, 2024 September 2024 is the hottest on record, and October is also breaking records
The Pinyon Plain Mine shaft in Coconino County, on Wednesday, Aug. 30. In 2016, the mine shaft punctured a perched aquifer that contained natural levels of uranium, requiring the mining company Energy Fuels to pump water to the surface to an impoundment for treatment.

Uranium Mining in the Grand Canyon Region: Tribal Sovereignty vs. Nuclear Energy in the Climate Crisis

Oct 2, 2024 Uranium mining and nuclear energy may be affecting Arizona's tribal nations, posing threats to the region's water resources and the environmental and cultural heritage connected to them.
Michael Bogan, UA aquatic ecology professor holds up a Mexican amberwing dragonfly at the Santa Cruz River Heritage Project Reach in Tucson, Ariz., on Friday, Sept. 20.

Dragonfly Festival honors Tucson’s Santa Cruz River restoration

Sep 27, 2024 From wastewater to wildlife, how Tucson’s Heritage Project Reach became a thriving river ecosystem.
Highly treated wastewater and stormwater flows through the Santa Cruz River off of the Guy Tobin Trailhead in Rio Rico, Ariz., on Thursday, Aug. 1, 2024.

Efforts to protect Santa Cruz River gain ground with federal conservation plan

Sep 18, 2024 Community leaders and federal officials join forces to safeguard one of America’s most endangered plans
Phoenix officials are seeking public input on updates to the city’s Climate Action Plan, as the region grapples with human-caused climate change, including poor air quality, drought, and extreme heat.

Phoenix ends its streak of 100-degree days at 113 consecutive days

Sep 17, 2024 The National Weather Service said Tuesday’s high temperature was 93 degrees Fahrenheit (33.8 Celsius) at 4 p.m. MST.
Laura Daniel-Davis, Acting Deputy Secretary for the Department of the Interior announces federal investments to support wildland fire management at Saguaro National Park in Tucson, Ariz., on Tuesday, Sept. 10, 2024. Alongside Daniel-Davis is Tom Torres, Arizona State Forester and Director of the Department of Forestry and Fire Management.

Arizona gets $10 million from the Interior Department for wildland fire support

Sep 11, 2024 DOI Acting Deputy Secretary Laura Daniel-Davis visits Saguaro National Park.
Phoenix officials are seeking public input on updates to the city’s Climate Action Plan, as the region grapples with human-caused climate change, including poor air quality, drought, and extreme heat.

Phoenix weathers 100 days of 100-plus degree temps as heat scorches western US

Sep 3, 2024 That's long since shattered the record of 76 days in a row set back in 1993, according to data from the National Weather Service.
Havasu Falls

Havasu Falls closed indefinitely after deadly flash flood

Aug 28, 2024 Havasupai Tribe and emergency teams assessing damage.
Horseshoe Bend, five miles downstream from the Glen Canyon Dam and Lake Powell, is a popular viewing spot for the Colorado River.

Arizona, Nevada and Mexico will lose same amount of Colorado River water next year as in 2024

Aug 15, 2024 Long-term challenges remain for the 40 million people reliant on the imperiled river.
A monsoon approaches the intersection of Broadway and Treat Ave. in Tucson, Ariz., on Thursday, July 18, 2024.

2024 monsoon bringing much of Southern Arizona out of drought conditions

Aug 15, 2024 The Tucson metro area is about 2 inches above normal rainfall totals.

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