Avian flu kills 3 California condors in northern Arizona

The California condors are part of a population that moves throughout northern Arizona and southern Utah, including Grand Canyon National Park.

Tribe warns U.S. government against moving ahead with Arizona mine

A U.S. government attorney said during last month’s hearing of a full panel of the 9th Circuit Court of Appeals that the final environmental impact study for construction of the mine at Oak Flat, Arizona, could be published this spring.

Scientists find ‘mountains,’ variable structures near Earth’s core

Samantha Hansen, a lead researcher, said the team was surprised by how “abundant” the structures were, finding evidence all over the southern hemisphere.

Arizona tribe, US officials reach deal to save Colorado River water

The $233 million pact with the Gila River Indian Community is part of a broader effort to get states that rely on the Colorado River to substantially lessen their water use.

Dramatic photos show how storms filled California reservoirs

Water levels fell so low in key reservoirs during the depth of California’s drought that boat docks sat on dry, cracked land and cars drove into the center of what should have been Folsom Lake.

Here's what really happens to your used clothing donations

Overall, only about 15% of used clothes and other textile waste is recycled in the U.S., according to EPA data. Here’s how to make sure your old clothes have the best impact.

A look at Bartlett Dam as Arizona releases water after wet and snowy winter
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Because of our wet and snowy winter, Arizona has seen water releases from Valley dams that we haven't seen in years, including Bartlett Dam north of the Valley. So much water has been released there this year, it's equivalent to draining and filling Bartlett Lake three different times. FOX 10's Troy Hayden got special access to the dam to see how it all works.

Here's why there could be pink snow at Yellowstone this summer

Visitors can see a variety of colorful snow patches, including pink, green, orange, and brown at different areas of Yellowstone Park this summer.

Teens value working for companies with positive environmental impact: Survey

A survey of high schools on what’s important to them in their future careers found they prioritize purpose, specifically addressing sustainability, hunger, and environmental concerns.

Hawaii considers tourist fees to help protect its natural environment

“All I want to do, honestly, is to make travelers accountable and have the capacity to help pay for the impact that they have," one Hawaii lawmaker said.

Gas prices could hit $4 a gallon after OPEC production cut

As of Monday, regular gasoline averaged roughly $3.50, according to AAA. If Flynn's prediction holds, it could mean gasoline prices will climb above $4 per gallon as summer nears.

Saudis, others cutting oil production could spike prices worldwide

Higher oil prices would help fill Russian President Vladimir Putin's coffers as his country wages war on Ukraine and force Americans and others to pay even more at the pump amid worlwide inflation.

Prehistoric sabertooth skull found in Iowa likely last of species to walk Earth, researchers say

Radiocarbon dating indicates the male sabertooth cat died at the end of the Ice Age between 13,605 and 13,460 years ago before getting buried in the East Nishnabotna River in southwest Iowa.

Plants can make noises when under stress, study says

Researchers said when plants were dehydrated or cut, the sounds emitted were louder than when they were left alone.

An Arizona dairy farm is turning cow manure into renewable natural gas

Butterfield Dairy Farm in Buckeye, Arizona is turning cow manure into renewable energy that has the potential to power thousands of homes.

Train derailment in western Minnesota: Fires still burning hours after crash

More than a dozen rail cars on a BNSF train derailed near Raymond, Minnesota, early Thursday, with several derailed tankers carrying ethanol starting on fire. 

Arizona dairy farm turning cow manure into renewable resource
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One dairy farm in the far West Valley is turning a thing many people would consider to be waste into something a bit more valuable. FOX 10's Desiree Fluellen reports.