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Tucson officially reached 100 degrees on April 11, 2025, setting a record for the earliest date with triple digit temperatures.

100 degree temperatures officially arrive

Apr 11, 2025 Tucson set a record on Friday.
Horseshoe Bend, five miles downstream from the Glen Canyon Dam and Lake Powell, is a popular viewing spot for the Colorado River.

UCLA Study: Wastewater reuse could offset Colorado River water crisis

Apr 8, 2025 Arizona and Nevada lead in wastewater recycling but other states lag far behind, researchers find.
The Boulder Fire near Carefree, AZ on June 28, 2024

The Buzz: Wildfire and home insurance

Apr 4, 2025 As wildfires grow in frequency, some homeowners say they are losing their insurance.
Children playing at a neighborhood splash pad.

Tucson Parks and Rec opens pools, splash pads ahead of rising temperatures

Mar 28, 2025 There is no entry fee for the city's pools or splash pads, offering residents an escape from the heat.
A section of the Borderlands Wildlife Preserve on Coronado National Forest land on Thursday, Feb. 27, 2025. The preserve is co-managed by the Borderlands Restoration Network and Wildlife Corridors.

Conservation nonprofit in Southern Arizona faces $1.2 million federal funding freeze

Mar 18, 2025 Borderlands Restoration Network fights to keep critical wildlife corridors and watershed projects alive amid funding uncertainty.
Looking out of an EcoFlight plane over the Sky Islands in Southern Arizona on Tuesday, Feb. 11, 2025.

BLM opens Environmental Assessment for Copper Creek Mine Project to public comment

Mar 7, 2025 Located in Arizona’s rugged Sky Islands, the proposed copper mine could impact ecosystem and water resources.
A pile burn in lost Dutchman State Park.

The Buzz: Preventing catastrophic wildfires

Mar 7, 2025 A look at how wildfires became more intense, and what we're doing to combat it.
An electric side-loader garbage truck lifts a trash can in Tucson, Ariz., on Wednesday, Feb. 26, 2025. This truck was paid for by the City of Tucson using environmental services funds and will participate in a pilot-program to be utilized on a residential refuse and recycling route throughout the city.

Tucson launches first electric garbage truck in move toward 2030 EV fleet goal

Feb 27, 2025 City officials want to cut emissions to improve public health.
Local elected officials, public health and climate advocates talked about the benefits of electric vehicle provisions, tax credits and health benefits in Tucson, Ariz., on Thursday, Feb. 13, 2024. From left to right: Arizona State Director of Climate Cabinet Nick Arnold, political and policy director of Rural Arizona Engagement Antonio Ramirez, chair and co-founder of Arizona Health Physicians for Climate Action Dr. Brian Drummond and Tucson councilmember Kevin Dahl. In a statement from the Mayor of Tucson Regina Romero, the city has received $40 million from the Inflation Reduction Act to expand its EV fleet and infrastructure.

Tucson leaders push for support to expand clean energy

Feb 18, 2025 Climate change is straining healthcare systems– advocates say clean energy can help.
Left: California Gulch on May 1, 2023. Right: Nov., 27, 2024.

Arizona’s Sonoran Chub at risk as border wall blocks critical streamflow

Jan 17, 2025 Threatened fish species faces threats from border infrastructure.
Arizona Senator Mark Kelly questions nominee for the Administrator of the Environmental Protection Agency, Lee Zeldin during his confirmation hearing before the Senate Committee on Environment & Public Works on Thursday, Jan. 16, 2024.

Arizona Senator Mark Kelly seeks commitment from EPA nominee to address legacy mines and PFAS issues in Arizona

Jan 16, 2025 Lee Zeldin agrees to support Kelly’s initiatives.
The Arizona Capitol Building. January 2017

Arizona conservation groups present 2025 Environmental Priorities to Governor Hobbs and Legislature

Jan 9, 2025 Over 35 organizations urge action on climate, water policies, clean energy and environmental justice in Arizona’s 2025 legislative session.
A series of turquoise signs along southbound U.S. 89 near Tuba City proclaims the Navajo Nation’s resiliency amid the COVID-19 pandemic.

Arizona tribes receive nearly $750k for climate adaptation plans

Jan 8, 2025 The funding comes from the Bureau of Indian Affairs' annual tribal community resilience awards program.

How climate change is changing the way Millennials plan for retirement

Jan 2, 2025 A University of Arizona study reveals how rising climate stress influences Millennial priorities in saving, spending and planning for the future.
Glenn Lader is a meteorologist at the National Weather Service in Tucson, which has seen record-setting high temperatures in 2024.

Tucson likely headed for warmest December on record

Dec 23, 2024 High temperatures have been averaging six degrees above normal since Dec. 1
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.

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