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Downtown traffic at Congress and the Freeway

Ozone Expected to Reach Problematic Levels in Tucson Tuesday

Ground-level ozone issues created by a mix of solar intensity and fossil-fuel emissions.
A man rests in the shade on a hot day in Tucson.

Hot Summer Could Mean Strong Monsoon

Hotter-than-normal June expected to usher in average or above-average rain season.
A fire truck returns after responding to the Frye Fire in the Pinaleño Mountains, 2017.

Dry Weather Pushing Tucson Area to Peak Wildfire Season

Lack of moisture, high temperatures and windy days make for prime fire conditions.
Boulder Basin at Lake Mead.

Feud Erupts Between Central Arizona Project, US States Over Colorado River

The states are accusing CAP of manipulating supply and demand of the water.
The lesser long-nosed bat.

Bat Key to Tequila Trade Gets Off US Endangered Species List

The announcement was good news to both wildlife conservationists and drinkers of tequila, as the bats are important pollinators of agave.
The entrance to Saguaro National Park east.

Saguaro National Park To Raise Entrance Fees

All rates go up $5 on January 1st.
The proposed site for the Rosemont Mine.

Tohono O'odham, Pascua Yaqui, Hopi Sue to Stop Rosemont Mine

The tribes say the area for the proposed mine is sacred.

Are "Dark Skies" Good for Tucson?

Also on Arizona Spotlight: Democratic candidates for governor talk education funding; Michael F. Blake on "The Cowboy President", and a backstage visit with "The Hunchback of Notre Dame".
Watering at a Yuma farm, 2014.

Farmers in Central Arizona Prepare for a Future with Less Water

The declaration of a shortage in Lake Mead would impact farmers first.
Snow blankets Summerhaven in the Santa Catalina Mountains.

Study to Look at Options for Summerhaven's Main Road

Pima transportation official says traffic congestion can be an issue during snow storms, summer weekends.
The Santa Cruz River flows downstream of the outflow from the Agua Dulce wastewater treatment plant.

Students Celebrate Santa Cruz River with Poems and Art

Pima County's Living River of Words contest inspired by visits to flowing river.
"A" Mountain, or Sentinel Peak, stands above the dry riverbed of the Santa Cruz River near Tucson's birthplace. Feb. 22, 2018.

Lifeblood of the Desert: Restoration Brings New Life to Santa Cruz River

The river has supported four millennia of agriculture and growth in Tucson.
Cars moving through Tucson.

Health Officials Ready for Earlier Ozone Season

High levels of ground-level ozone, a summertime pollutant, are detected earlier.
The aftermath of a wildfire on Southern Arizona's Mount Graham.

Climate Change Driving Longer Wildfire Season, UA Researcher Says

Data suggest Arizonans can expect a year-round wildfire season.
An F-35A Lightning II lands at Luke Air Force Base near Phoenix, Arizona, April 2016.

Battle Over F-35s Returns to Tucson

Opposition group gears up to resume fight against stealth jet.
Felis domesticus made it on the list of invasive species.

Feral Cats Make List of Invasive Species in the West

Salt Cedars, mussels and crayfish among the less cuddly pests listed.

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