More Arizona Environment Science Stories

Suspect Charged in Saguaro National Park Vandalism

16-year-old boy alleged to have spray-painted graffiti on 11 saguaros, other spots in May.

Clean Water Agreement, Through Congress, Signed for AZ Tribe

Under $200M federal allocation, White Mountain Apaches will get 'clean water for another 100 years.'

Feds Hold Jaguar Sanctuary Meeting

Public invited to Sierra Vista gathering Tuesday; state game officials oppose plan to set aside 1,300 sq. miles.

Border National Monument is Center of Conflict

Organ Pipe Cactus Park has sparked issues among Border Patrol, ecologists, visitors.

Yarnell Fire 100% Contained

U.S. Forest Service said the blaze that killed 19 Prescott firefighters ceased late Wednesday night.

Deadly Wildfire Continues Out of Control

Blaze that killed 19 firefighters has 'high' potential for growing beyond its 8,400 acres, officials say.

Wildfire on Mount Lemmon Burns 200 Acres

Blaze possibly caused by lightning Sunday evening continues to grow on site of Aspen Fire of decade ago.

Prescott in Mourning: 19 Firefighters Killed

1,000 jam auditorium for memorial; tears, eulogies, prayers, moment of silence mark Sunday's tragedy.

'Excessive Heat' Warning Remains in Effect in AZ

Temperatures to 116 Sunday, with limited outdoor activity advised; monsoon coming, but not soon enough.

Signs Point To Early Monsoon Rains

Forecaster predicts moisture will come not long after season's official start Saturday, similar to 2012.

Future of Colorado River Discussed

Another dry year, more stress on dwindling water supply

Patagonia Wildfire 75% Contained

Mop-up beginning; flames no longer spreading

Condor Reintroduction Faces Setbacks

7 deaths since Dec.; lead poisoning to blame for some

Report Calls Colorado River 'Most Endangered'

Demand; drought threaten waterway; but some are optimistic it can be restored

Reintroduction of Wolves Remains Contentious

Supporters cheer Mexican gray's recovery; cattlemen still opposed

Desert River Harbors Life

San Pedro encompasses multiple wildlife habitats

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