Study finds some pain medicines could soon be created from pine trees

Researchers in England have determined an alternative to making pain medications like ibuprofen from pine trees rather than crude oil.

Drinking water from nearly half of US faucets contains PFAS, study says

PFAS chemicals have been linked in animal studies to some cancers, including kidney and testicular, plus issues such as high blood pressure and low birth weight.

Earth sees hottest day on record for third straight day

The daily highs are an indication that climate change is reaching uncharted territory, scientists say.

Ohio researchers develop new breed of honeybees to fight parasites

Central State University's breeding program aims to create worker bees with smaller mandibles known as 'Ohio Mite Biters.'

Rare lizard found only in major US oil patch proposed as endangered species

The dunes sagebrush lizard has quite the natural habitat. It's found only in parts of one of the world's most lucrative oil and natural gas basins.

This smoky summer could be America's 'new abnormal'

Wildfires are already consuming three times more of the United States and Canada each year than in the 1980s and studies predict fire and smoke to worsen.

At least 10 deaths caused by rip currents off Florida, Alabama beaches

A firefighter from Georgia and two fathers who drowned while trying to save their children are among at least 10 recent victims of dangerous rip currents along Gulf of Mexico beaches stretching across Florida’s Panhandle to Gulf Shores, Alabama.

How is air quality measured?

As smoky air from Canada’s wildfires shrouds broad swaths of the U.S., here are seven facts you should know about measuring air quality.

As home-building costs rise, Phoenix area company uses foam to build houses

Homes in the Phoenix area are often built with lumber, but amid rising costs and questions over lumber's environmental impact, one Arizona company is using a different material to build new structures.

Oak Flat Timeline: Native American vs. pro-mining interests

Resolution Copper, a subsidiary of international mining giants Rio Tinto and BHP, wants to develop the large deposit of copper ore deep under Oak Flat into a massive mine. The nonprofit Apache Stronghold considers the land sacred and says it should be preserved for religious ceremonies.

East Valley residents still dealing with aftermath of Mesa mulch fire

It has been weeks since crews responded to a mulch fire in the East Valley, and residents are still dealing with a rather stinky mess the fire left behind.

US government to award $1.7 billion to buy electric and low-emission buses

The grants will allow transit agencies and governments to buy 1,700 U.S.-built buses, and half of the vehicles will have zero carbon emissions.

Yellowstone River bridge collapses, freight train falls into waters below

Numerous tank cars were partially submerged in the river early Saturday, with an Associated Press reporter witnessing a yellow liquid pouring out of tank cars.

Algae warning issued for Bartlett Lake
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If you're headed to Bartlett Lake this weekend, don't get in the water. Tonto National Forest officials say blue green algae has been found in the lake. The algae can produce toxins that are dangerous for people and pets. Officials advise to not go swimming in the lake, and to not wash or cook with lake water.

3M settles 'forever chemicals' water pollution lawsuit for $10B

Chemicals manufacturer 3M announced that it has reached a $10.3 billion settlement with U.S. public water suppliers that have detected PFAs – known as "forever chemicals" – in their drinking water. 

Supreme Court rules against Navajo Nation in Colorado River water rights case

States that draw water from the river — Arizona, Nevada and Colorado — and water districts in California that are also involved in the case had urged the court to decide for them, which the justices did in a 5-4 ruling.

Biden administration moves to restore endangered species protections dropped by Trump

The Biden administration has proposed new rules for protecting imperiled plants and animals as officials move to reverse changes under former President Donald Trump that weakened application of the Endangered Species Act.