Air pollution in national parks equal to some big U.S. cities

Air pollution in U.S. national parks such as Yellowstone, Yosemite and Acadia is as bad as some of the nation's largest metropolitan areas, according to a new study. The study also suggests the foul air has caused visitors to cut their visits short or avoid going at all.

Yes, this hurricane season has been worse than usual.

The already-catastrophic 2017 hurricane season shows no signs of letting up: Hurricane Maria is roaring through some of the same Caribbean islands ravaged by Irma, just as Hurricane Jose stirs up trouble along the U.S. East Coast.

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Antarctica's expanding ice-free areas threaten animals and plants, study says.

Ice-free areas in Antarctica could expand by close to 25% by 2100 and drastically change the animal and plant life of the continent, research published Wednesday shows.

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Humans were already changing the environment 11,500 years ago.

Man-made environmental change isn't new: A study found human activities such as farming and logging led to erosion around the Dead Sea some 11,500 years ago, the earliest ever discovered.

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Niccolò Ubalducci/flickr

Tornado deaths and destruction to triple in coming decades, study says.

The number of deaths and damaged or destroyed homes caused by tornadoes in the U.S. could triple by the end of the century, and man-made climate change may not be entirely to blame.

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Christopher Michel/flickr

World Penguin Day: Penguin population in Antarctica is 12 million.

Doyle Rice , USA TODAY Published 12:05 a.m. ET April 25, 2017 | Updated 2 hours ago

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California again leads list with 6 of the top 10 most polluted US cities.

A new report has released details on the most and least polluted cities in the United States based on data from 2013 to 2015. USA TODAY

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From our Newsroom

Fractured: Harmful chemicals and unknowns haunt Pennsylvanians surrounded by fracking

We tested families in fracking country for harmful chemicals and revealed unexplained exposures, sick children, and a family's "dream life" upended.

Fractured: The stress of being surrounded

Jane Worthington moved her grandkids to protect them from oil and gas wells—but it didn't work. In US fracking communities, the industry's pervasiveness causes social strain and mental health problems.

Fractured: Distrustful of frackers, abandoned by regulators

"I was a total cheerleader for this industry at the beginning. Now I just want to make sure no one else makes the same mistake I did. It has ruined my life."

Fractured: Buffered from fracking but still battling pollution

A statewide network of fracking and conventional wells, pipelines, and petrochemical plants closes in on communities.

Fractured: The body burden of living near fracking

EHN.org scientific investigation finds western Pennsylvania families near fracking are exposed to harmful chemicals, and regulations fail to protect communities' mental, physical, and social health.

10 tips for cleaner grocery shopping

Picking ingredients for a better lifestyle.

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