More Environment Stories

Initial flow for Santa Cruz River project goes beyond expectations

The project pumping reclaimed water into a section of river near downtown saw water reach farther downriver than predicted.

Native Arizona fish finds new home in Tucson's Mission Garden

Last week, one of Arizona’s most historically prolific native fish was introduced into some new habitat at the Mission Garden.

Smoke from US wildfires boosting health risk for millions

Another summer of fires in the West is expected to impact millions and increase premature deaths.

Southern Arizona officials ask Congress to keep clean car standards

The White House wants to let automakers roll back emission and mileage standards.

UA researcher investigating chemicals used in firefighting foam

Reyes Sierra-Alvarez is working on methods to absorb a contaminant discovered in groundwater.

How much water is in the San Pedro? Every year, volunteers seek to find out

More than 100 volunteers spent last weekend tracking the presence of intermittent water in the river.

Bat night at the Mission Garden

Also: A new facility in Nogales, Sonora to help migrants following the Trump administration's "Remain in Mexico" policy; and strangers find common ground with "One Small Step".

Tucson City Council opposes proposed Interstate 11

A resolution lays out the environmental and economic reasons for the opposition.

UA storm watchers predict active hurricane season

Annual forecast model shows Atlantic conditions similar to dangerous 2017.

Legislation would fund Air Force cleanup of unregulated chemicals

The perfluorinated chemicals have been found in municipal wells near Davis-Monthan Air Force Base.

Utah presses forward with pipeline plans despite Colorado River Basin constraints

The pipeline would be like dipping a 140-mile straw into Lake Powell halfway across the state.

Supervisor Elias stresses importance of Clean Water Act to Senate committee

Pima County Supervisor Richard Elias about the importance of the Clean Water Act in the desert Southwest.

On stressed Colorado River, states test how many more diversions watershed can bear

The river is running short on water, and this is pushing some states to tap into every available drop before things get worse.

4 rare pygmy owls successfully hatch at Phoenix Zoo

The cactus ferruginous pygmy owl's range has been declining since the '70s.

UA researchers dating ancient volcanic eruption using tree rings

The tree rings can help them understand more about the explosion of a volcano thousands of years ago.

Endangered condor may have hatched in Zion National Park

Behavior changes in known breeding pair of birds indicate the possibility of hatched chick.

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