In the past 25 years, California’s most polluted inland lake has grown more polluted and hazardous as it has lost one-third of its water. A new paper suggests that warming trends and water diversion might not be the cause.
More science and innovation news
Oct. 12, 2022
classroom supplies
Researchers from Northern Arizona University and University of Arizona are collaborating with the Cocopah Indian Tribe to assess environmental health issues at a Head Start and day care facility. Concerns include possible air and water pollution from surrounding areas.
Oct. 6, 2022
Monsoon storm lightning over downtown phoenix summer 2022
The 2022 monsoon season was a wet one. Most of the state saw rainfall near or above average.
Oct. 4, 2022
snow on rocks
A new study from Colorado State University takes a deep dive into the complex connection between wildfires and snowpack and how it all relates to our diminishing Western water supply.
Oct. 4, 2022
President Joe Biden has formally declared a destructive monsoon storm from July a major disaster for the Salt River Pima-Maricopa Indian Community. The U.S. Small Business Administration says time is running out for those affected to seek a federal disaster loan to rebuild.
Sep. 30, 2022
Grand Canyon National Park
Laundry, camp showers and other services are back to normal at Grand Canyon National Park, which has imposed water conservation measures a number of times this summer.
Sep. 28, 2022
University of Arizona students
Arizona’s drought has policymakers scrambling to find new ways to conserve water, and, because of that, a new crop may be in Arizona’s future.
Sep. 26, 2022
Last week, the Scottsdale City Council approved an ordinance preventing homeowners’ associations from forcing people to overseed their lawns. Overseeding is a popular fall procedure in Arizona used to convert summer grass into a more lush winter variety.
Sep. 24, 2022
Copper Mine
A federal agency says an environmental review for a proposed copper mine in Arizona falls short on details about water and the potential impacts of climate change.
Sep. 22, 2022
Water quickly overwhelmed small culverts
Coconino County residents were told Tuesday morning that they face millions of dollars in repairs to stop future flooding after this year’s heavy monsoon season.
More news from the Fronteras Desk
Sep. 20, 2022
Raindrops on flowers
Much cooler weather is on the way later this week in Phoenix. While the workweek is expected to begin with high temperatures above 100 degrees, Phoenix National Weather Service Meteorologist Gabriel Lojero predicts wet conditions soon.
Sep. 18, 2022
Fall is overseeding season in Arizona — when residents transform their lawns to a greener, winter turf. But with the Southwest battling a historic drought and water cuts, the city of Mesa is encouraging residents to limit or forgo their overseeding efforts this year.
Sep. 16, 2022
Turlock Irrigation District solar canal rendering
A California utility is set to test out whether covering canals with solar panels can save water by preventing evaporation, among other benefits.
Sep. 14, 2022
Lake Mead barrels
Average water levels at Lake Mead rose by 4 feet during the month of September, according to the Bureau of Reclamation. Orestes Morfin, a senior planning analyst at the Central Arizona Project, says not to get too excited with the high levels.
Sep. 13, 2022
Bureau of Land Management sign
A panel of Bureau of Land Management experts has analyzed an environmental impact statement for a proposed copper mine near the Oak Flat area of Tonto National Forest.
Sep. 13, 2022
The National Weather Service has issued several flood warnings for parts of southern Arizona as more remnants of Tropical Storm Kay send ripple effects into Arizona, California and Nevada.
Sep. 12, 2022
Kyrene Reclamation Facility Tempe
During the Great Recession, the city of Tempe shuttered its Kyrene water reclamation facility. Now the city will get federal funding to revive the plant, which will be able to treat up to 4 million gallons a day.
More Arizona water news
Sep. 12, 2022
La Nina pattern
Cold water in the Pacific Ocean is pushing towards the surface, changing weather patterns above our region for the third straight year. Typically, that means colder, wetter winters for the northwestern portion of the country, and a warmer, drier winter in the Southwest.
Sep. 12, 2022
wastewater plant
Wastewater monitoring rose to prominence during the pandemic, when states like Arizona used it to detect the emergence of the omicron variant. Now, concerns over polio and monkeypox have inspired 18 scientists to call for scaling up the surveillance.
Sep. 9, 2022
Colorado River
Divvying up Colorado River water has been the subject of at least two letters this week from Republican and Democratic members of Arizona’s congressional delegation. One note was sent to the head of the U.S. Department of Interior and the other to the governor of California.
Sep. 7, 2022


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