TEP rate hike proposal draws opposition from climate advocates
Groups say TEP shouldn't keep investing in fossil fuels. The utility says the plan will enable a transition to more renewable energy.
Grijalva asks feds to 'respect tribal lands' during border construction
U.S. Rep. Raúl Grijalva is asking the Department of Homeland Security to formally consult with the Tohono O'odham Nation.
Planning for a future with less Colorado River water
A new book sheds light on mistakes of the past while Arizona gears up for the next round of negotiations.
The great white whale, sighted in Tucson!
Also on Arizona Spotlight: A conversation with ecologist Brad Lancaster; and the series "Youth Crossing Gender Borders" begins.
Feds say tiny snail in Utah, Arizona can no longer be listed as endangered
U.S. Fish and Wildlife says the Kanab ambersnail is not actually its own species.
Feds waived environment, other regs on 90 miles of state border in 2019
The waivers were aimed at streamlining wall construction on nearly one-quarter of Arizona's border with Mexico.
Conservationists: Mexican government failing to protect vaquita
They say Mexico has not been able to curb illegal fishing in the Sea of Cortez that threatens the nearly extinct porpoise.
Tucson offering drop-off recycling for your Christmas tree
Putting the Christmas tree on the curb won't get rid of it.
Proposed Clean Water Act changes will mean uncertainty, loss of protections for Arizona waterways
The Trump administration is implementing a new rule defining which waterways are regulated under the act.
Video shows groundwater pumping for border wall near Quitobaquito Springs
Conservationists worry pumping will harm a rare and critical desert water source.
Greenland ice melt matches UN panel's worst predictions
New research suggests ice loss in Greenland has contributed just over a centimeter of mean sea level rise over 26 years.
Interior secretary announces study impacting Colorado River water talks
States are set to begin negotiations next year over a new set of agreements about the river's future.
Scientists consider vertical farming ahead of changing climate
A UA researcher says the technique could help solve future food concerns.
Report: Tailings dam poses threat to Rio Sonora valley 5 years after major spill
The report's author says Grupo México's new tailings pond threatens the health and livelihood of people already impacted by a 2014 spill.
Poachers swarm vaquita refuge ‘like never before’
A conservationist said the number of poachers in the endangered porpoise's habitat — casting nets for a fish called the totoaba — is unprecedented.
