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More Pima County Environment Stories
Incoming Storm Could End Heat Wave
A storm system heading for Tucson means temperatures could get back to normal.
Ozone Warning Issued as Temperatures Set to Exceed 110 Degrees
The weather system that is bringing the heat also prevents pollutants from leaving the air.
Heat and Ozone Levels Forecast to Rise in Tucson
Air pollutant could be at elevated levels through Friday; hot temperatures will last through the weekend.
Episode 141: Local Governments Say No to Trump's Wall
Metro Week: 2 fire districts propose consolidation; new Catholic bishop coming to Tucson.
Planting Fish to Kill Mosquitoes: 'This Is Historical'
Endangered fish species going into swimming pool to eat larvae.
Tucson Ranks Low in Public Park Availability
Trust for Public Land rankings show many Tucsonans do not have easy access to a park.
TEP Deal to Provide Solar Electricity for 21K Homes
The array, to be finished in 2019, will be the largest in TEP's renewable energy portfolio.
Grand Canyon Considers Thinning Bison Herd
Park officials worried about damage done by up to 600 bison in the park.
Next Step for Rosemont Mine Approval Could Come in June
Coronado National Forest supervisor expected to sign record of decision in June.
Avra Valley I-11 Proposals Draw Opposition at Tucson Meetings
Citizens disagree with notion of building highway through deserts west of Tucson.
Mulberry Fire Slows After Burning 1,755 acres
Fire started Saturday; authorities say it is human caused.
Sawmill Fire Held to 47,000 Acres, 89% Contained
Fire managers focus on eastern side, hope to keep community of Mescal safe.
40,000-Acre Wildfire Slows, But More Winds Expected to Drive It Anew
Wind gusts to 35 mph coming in Thursday could spread Sawmill Fire near Sonoita.
National Weather Service Wants Help Spotting Storms
Program helps meteorologists get view of incoming storms to make monsoon safer.
Spring Weather Draws Hikers, Then Rescue Teams
Many hit the trail unprepared for the reality of hours in the sun.
Best Pet for Sonora? Desert Tortoises Up for Adoption
Nearly 100 captive-born tortoises up for adoption to homes in Sonoran Desert.
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