Nature and Environment

Southern Arizona officials ask Congress to keep clean car standards

Jun 25, 2019 The White House wants to let automakers roll back emission and mileage standards.

Tucson reviving a stretch of the Santa Cruz River

Jun 24, 2019 Tucson Water is putting water back into the Santa Cruz River near downtown.

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

Jun 21, 2019 More than 100 volunteers spent last weekend tracking the presence of intermittent water in the river.

UA researcher investigating chemicals used in firefighting foam

Jun 21, 2019 Reyes Sierra-Alvarez is working on methods to absorb a contaminant discovered in groundwater.

Bat night at the Mission Garden

Jun 19, 2019 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

Jun 19, 2019 A resolution lays out the environmental and economic reasons for the opposition.

UA storm watchers predict active hurricane season

Jun 18, 2019 Annual forecast model shows Atlantic conditions similar to dangerous 2017.

Legislation would fund Air Force cleanup of unregulated chemicals

Jun 17, 2019 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

Jun 14, 2019 The pipeline would be like dipping a 140-mile straw into Lake Powell halfway across the state.

Snowmelt fills rivers in US Southwest, easing drought fears

Jun 13, 2019 An abundance of snowmelt is rushing into the Colorado River, the Rio Grande and other waterways after a desperately dry 2018.

Supervisor Elias stresses importance of Clean Water Act to Senate committee

Jun 13, 2019 Pima County Supervisor Richard Elias about the importance of the Clean Water Act in the desert Southwest.

Dams could protect ranchers from climate change's drought, but could they also contribute to it?

Jun 13, 2019 Wyoming is moving forward on building or expanding several reservoirs on the Green River, a main branch of the Colorado River.

Heat warning remains in effect for Phoenix area

Jun 12, 2019 Tucson is outside the warning area but is also expected to remain hot.

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

Jun 12, 2019 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

Jun 10, 2019 The cactus ferruginous pygmy owl's range has been declining since the '70s.

Arizona plans for drought contingency plan impacts

Jun 10, 2019 Water managers are preparing for a future with less Colorado River water.

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