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Water flows down the face of Sabino Dam after a heavy winter rain. Intermittent waterways like this one will lose federal protection under the Clean Water Act under a new rule put forward by the Trump administration.

Opinions mixed on roll-out of new federal water rule

The Trump administration released its final rule Thursday redefining which waterways are protected under the Clean Water Act.
Vertical farmed plants are fed with liquid nutrients instead of soil.

Scientists consider vertical farming ahead of changing climate

A UA researcher says the technique could help solve future food concerns.
Cacao tree fruit.

UA researcher studying disease that could impact chocolate supply

The Swollen Shoot disease is affecting cacao trees in Ghana.
Tomatoes on their way north across the U.S.-Mexico border.

Restarted Mexican tomato investigation makes final duty determination

The Department of Commerce determined that Mexican tomatoes are likely to be sold for less than fair value.
A rendering of the building for UA's recently approved veterinary medicine program.

UA gets go-ahead to open school of veterinary medicine

The program will be the first public vet school in Arizona.
Workers sort through tomatoes at a packing plant in southern Sonora, Mexico.

Florida tomato growers reignite anti-dumping battle with Mexican producers

The Florida growers are pushing to resume an investigation despite a hard-fought agreement between Mexican growers and the USDA.
Romaine lettuce field in Arizona. Lettuce is the state's top cash crop, according to the UA Cooperative Extension.

UA researchers put food safety under a microscope in Yuma

A study is looking into the reasons behind persistent E. coli outbreaks in the produce growing region.
An archeologist sifts dirt for artifacts and an excavation site off West El Camino Del Cerro and Interstate 10 on August 20, 2019.

What an archaeological dig near the Santa Cruz River may unearth about the past

The site was discovered during preliminary work on a new interchange near I-10 and Ruthrauff Road.
Gerry & Darwin Hall, photographed by Jade Beall (detail).

"Wise Bodies, Beautiful Elders" - photographer Jade Beall confronts ageism in the raw.

Also on Arizona Spotlight: The facts regarding mental illness and gun violence; and mushroom hunters go on a monsoon quest.
John Heun operates a mobile platform in an alfalfa field at the Maricopa Agricultural Center on July 26, 2019. The mobile platform is equipped with technology used for research in precision agriculture conducted by the University of Arizona College of Agriculture and Life Sciences.

UA research farm using automation to innovate industry

The Maricopa Agricultural Center is a testing ground for precision agriculture.
Conservation agriculture in Zimbabwe.

UA scientist analyzing how well farming techniques travel

The researcher asks why a conservation agriculture method used in North America hasn't caught on in Zimbabwe.
Workers sort through tomatoes at a packing plant in southern Sonora, Mexico.

Florida 'appreciates' new tomato proposal; Nogales growers concerned

A produce distributor based in Nogales says proposed changes are "logistically impossible."
Two Gila Topminnows.

500 Gila Topminnows make a splash at The Mission Garden

Also on Arizona Spotlight: Author Kimi Eisele on "The Lightest Object in the Universe"; singer Natalie Douglas returns to Tucson with the songs of Nat King Cole; and "A Love Letter to the Library" about MegaMania.
File image of a box of produce from Mexico.

Southwest members of Congress decry produce protection measures

Critics say provisions could mean higher prices for consumers and endanger approval of the renegotiated NAFTA.
"A" Mountain, or Sentinel Peak, stands above the dry riverbed of the Santa Cruz River near Tucson's birthplace. Feb. 22, 2018.

Tucson reviving a stretch of the Santa Cruz River

Tucson Water is putting water back into the Santa Cruz River near downtown.
The Green River is a main branch of the Colorado River.

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

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

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