Extra fees on nonresident visitors to national parks have hurt local tour companies and are an overreach of the executive branch, the suit claims.

Extra fees on nonresident visitors to national parks have hurt local tour companies and are an overreach of the executive branch, the suit claims.

Every year, The Open Notebook offers a paid, part-time fellowship program for early-career science journalists. This ten-month program offers fellows the opportunity to explore their career interests and passions and to sharpen their skills as part of a talented, supportive, diverse community of past and present fellows and mentors. This fellowship is made possible through the generous support of the Burroughs Wellcome Fund.

This year, super El Niño, reduced weather balloons, dust and climate change add to the challenges of storm chasing in Arizona.

Despite low survey numbers after years of ferret releases, new plague prevention and cloning techniques are giving scientists hope for the future.

Despite low survey numbers after years of ferret releases, new plague prevention and cloning techniques are giving scientists hope for the future.

This year, super El Niño, reduced weather balloons, dust and climate change add to the challenges of storm chasing in Arizona.

Arizona ranks second in the country for bat diversity, with a new species detected as recently as last year.

Volunteers find satisfaction in turning grief into action as they help the North Rim take baby steps toward long-term vegetation recovery.

A new study will monitor surviving Paradine plains cactus north of the Grand Canyon for three years to measure the full impacts of the fires.

Scientists say beavers keep wetlands wet, leaving them less less prone to burn.

After federal tax credits for renewable projects expired, joining a solar co-op is one way to save on residential solar.

Stocked game fish have devastated aquatic wildlife, and conservation groups want to eradicate the invasive species and reintroduce native ones.

After federal tax credits for renewable projects expired, joining a solar co-op is one way to save on residential solar.

The Dragon Bravo Fire burned across 150,000 acres and destroyed the historic lodge at the North Rim, but work to repair it started almost immediately.

Climate change brings warmer temperatures and drier weather — conditions favorable for a rapid spread of wildfires.

Ranchers are leaning on GPS collars, remote sensors and artificial intelligence to ease the pains of a tough livelihood, one made worse by drought.

Ranchers are leaning on GPS collars, remote sensors and artificial intelligence to ease the pains of a tough livelihood, one made worse by drought.

History plays a role in demarcating natural categories, from biological species to mineral kinds to planetary classification.

As Arizona heads into a potentially fiery summer, the U.S. Forest Service is dealing with budget cuts and new fire policies.

A start-up company says it has devised a way to dispose of debris from forest-thinning projects and reduce wildfire risk.

A start-up company says it has devised a way to dispose of debris from forest-thinning projects and reduce wildfire risk.

Climate change is drying out rivers across the country. A new AI forecasting tool can help managers, governments and water users plan.

Climate change is drying out rivers across the country. A new AI forecasting tool can help managers, governments and water users plan.

At a time of fewer protections for public lands, residents of Prescott devise a new playbook to preserve the Granite Dells as open space.

At a time of fewer protections for public lands, residents of Prescott devise a new playbook to preserve the Granite Dells as open space.

As black hawks flock to Tubac, so too do birdwatchers. The monitoring effort provides a snapshot of health of the riparian habitat.

A proposal that would expand energy development on 336,425 acres around Chaco Culture National Historical Park initiated a sudden 7-day public comment period that prompted “approximately 70,000 comments” on the matter, according to the U.S. Bureau of Land Management.

As black hawks flock to Tubac, so too do birdwatchers. The monitoring effort provides a snapshot of health of the riparian habitat.

Managing federal lands could cost Arizona $800 million in lost funding, a new study concludes. Most of the cost comes from wildfire mitigation and suppression on wild lands across Arizona. Outdoor recreation is the most lucrative land use of public lands and far exceeds the tax revenues generated from industries like mining. A newly released report aims to remind people of the importance that public lands remain in federal hands, even as state lawmakers in several Western states continue to push plans to take over the resource. The report, released in conjunction with Arizona Public Lands Day, the first Saturday of April, pegs the economic cost of managing those swaths at $800 million a year, enough to bankrupt the state outright if Arizona took over managing federal lands within its boundaries. “A number of legislators seem to think that they could make a lot of money,” said study author Dave Wells of the Grand Canyon Institute. “They don't certainly fully recognize all of the federal dollars that come in to maintain the land.” A state takeover of federal lands would hit rural communities the hardest, block public access to recreation opportunities and likely anger many Arizona voters. Yet rollbacks in...

On Arizona Public Lands Day, a new report examines the costs and the losses to the state for taking over federal lands.

Three potential satellite projects may change our night sky forever. Beyond the environmental and scientific problems, the proposals are an ethical nightmare.

As summer rains vanish and dry conditions persist, borderland ranchers worry about their livelihood, culture and identity.

Scientists are racing to figure out why porcupines are disappearing from their former stomping grounds.

The deadline to weigh in on the change is 11:59 p.m. Eastern Time on Sept. 19.

Shi En Kim wrote about the iconic saguaro flower for High Country News and joined The Show to discuss more.

The deadline to weigh in on the change is 11:59 p.m. Eastern Time on Sept. 19.

The deadline to weigh in on the change is 11:59 p.m. Eastern Time on Sept. 19.

The deadline to weigh in on the change is 11:59 p.m. Eastern Time on Sept. 19.

Saguaros are struggling to cope with extreme weather, monitoring studies reveal.

Saguaros are struggling to cope with extreme weather, monitoring studies reveal.