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Eighteen plots are laid out on the hillside on Brian Mealor’s property in Sheridan County, Wyo. Mealor is studying how differing amounts of herbicide sprayed at different times of year can be used to manage invasive species.

In grasslands plagued by invasives and drought, wildfires fuel calls for new solutions

Invasive plants and climate change are changing the relationship between vast rangelands, drought and wildfire.
Between the High Park and Cameron Peak Fires, a broad reach of the Poudre River’s watershed has burned within the last decade.

For the West’s drinking water, wildfire concerns linger long after smoke clears

For municipal drinking water systems, fires are felt for years after they’re snuffed out.
Firefighters watch a controlled burn within the Grizzly Creek Fire in Colorado. The fire has burned more than 30,000 acres near Glenwood Canyon. Now, the charred hillsides pose a flood risk for nearby areas.

Homeowners who avoid wildfire damage can find themselves in new flood zone

Even long after the flames of a wildfire are gone, those who live nearby face a serious increase in the threat of flooding.
A solar array used by Tucson Electric Power to add renewable energy to the grid, August 2019

Tucson Electric Power looks to expand renewables, raise customer rates

TEP’s plans to raise rates and install a transmission line near historic neighborhoods are not without controversy.
A firefighter watches the flames in Yellowstone National Park during the 1988 fires.

In Yellowstone, America's 'first water park,' decades-old blaze marked start of megafire era

The wildfires ushered in a chapter of massive, frequent blazes as well as a new understanding of the ecological process.
The Colorado River near Kremmling, Colorado, on Sept. 15, 2018.

Climate change likely to keep hammering Colorado River's biggest reservoirs, model shows

Projections show an increasing likelihood of official shortage declaration before 2026.
Climate change will mean hotter temperatures and likely longer periods of drought for the Southwest.

Tucson City Council to vote on climate emergency declaration

Plan calls for carbon-neutral city operations by 2030.
Barbara Tobiasson pictured at her home at the Swan Lake Estates mobile home park on Aug. 31, 2020.

'Feels like the end of the world': Tucson grapples with record heat during pandemic

The desert community has faced both soaring temperatures and life under the coronavirus, as some work to mitigate the impact of a warmer future.
The sun shines harshly behind a saguaro cactus.

The risks of severe heat

The hottest summer in the city’s history came during a global health crisis, leaving many residents at risk for heat-related issues.
Pat Shoneck and Eileen Green ride in a golf cart at the Swan Lake Estates mobile home park, a 55+ park where Shoneck lives.

Heat, COVID-19 and isolation put mobile home parks at risk

Ten percent of metro Tucsonans live in manufactured housing. But residents there face risks made worse by COVID-19 and record heat.
Rain clouds near Tubac, July 2019.

Lots of heat, little rain in Tucson

Less than an inch of rain when we usually have nearly four inches.
Scientists have been studying the Colorado River, shown here from above Deer Creek Falls, for nearly four decades to understand the environmental impacts of the Glen Canyon Dam on a water source used by around 40 million people in seven states. The environment, climate change, tribal rights and those water users will all be considered in river-management talks expected to begin later this year.

Humpback chub 'alien abductions' help frame the future of the Colorado River

While not considered very "charismatic," this keystone fish plays an important role in water policy.
The Bighorn Fire burns in the Santa Catalina Mountains on June 16, 2020.

More fuel, dry weather create perfect storm for Bighorn Fire crews

A discussion with UA professor and fire ecology expert Don Falk.
In the 1990s, small, independent antique shops began to fold and dealers relocated into large antique malls. Midtown Antiques in Stillwater, Minnesota is likely the largest in the upper Midwest.

"Secondhand: Travels in the New Global Garage Sale"

Also on Arizona Spotlight: Adiba Nelson shares an open love letter to all women, everywhere; and how UA scientists are understanding climate change through research in the Southern Ocean.
Some of the clean power the Navajo Nation hopes to sell to Los Angeles will be produced by the sun.

Clean energy produced on Navajo land could help power Los Angeles

With the recent closure of the Navajo Generating Station, Navajo leaders are looking to jump start the tribal economy by partnering with Los Angeles.
The Madagascar jumping frog has experienced climate-related local extinction.

UA researchers warn of time frame for species extinctions

A new report says some plants and animals will succumb to climate change in 50 years.

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