25,000 barrels possibly laced with DDT are found off California coast

One researcher said the number of discarded drums far exceeded his expectations. “It was hard to wrap my head around the density of targets,” he said.
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On the water in Alaska, Where salmon fishing dreams live on

Each summer, salmon begin their journey back to the rivers where they were spawned. Alaskan fishermen, along with whales, eagles and bears, share in the abundance.

Honey detective work raises fears for bees

Pollinators risk running short of food as wildflowers disappear in a "green desert", experts warn.

Insect populations suffering death by 1,000 cuts, say scientists

'Frightening' global decline is 'tearing apart the tapestry of life', with climate crisis a critical concern.


Migratory river fish populations plunge 76% in past 50 years

Decline in species such as salmon harms entire ecosystems and livelihoods, say researchers.


EPA scales back requirements for pesticide testing on fish

The EPA will allow pesticide producers to forego certain tests which can indicate whether chemicals accumulate in fish and enter the food chain.


The productive power of poop

Referred to in polite company as a "marine subsidy," otter feces are a key fertilizer on small islands.


The sound of icebergs melting: my journey into the Antarctic

Not long after Antarctica recorded some of its highest-ever temperatures, I joined a group of scientists studying how human activity is transforming the continent.


University of Michigan study finds importance of individual fish urine

A study led by the University of Michigan finds the "power of fish pee" and how individual fish are promoting healthy ecosystems.

We’ve been systematically underestimating sea otters’ historical habitat

Estuaries once harbored thousands of otters, and now conservationists want to extend recovery efforts to California's largest estuary: San Francisco Bay.


The macabre science of mass animal die-offs

Researchers are replicating “mass mortality events” with pig carcasses. The ecological consequences could hint at what's happening in Australia right now.

Mayfly numbers drop by half since 2012, threatening Midwestern food chain

Mayflies, which form swarms in the billions that are visible on weather radar, are in steep decline, mirroring the plight of insects worldwide.

Skinny whales

The mystery behind emaciated ‘zombie whales’ stranding on the West Coast in 2019 is still unsolved, and there are troubling signs for 2020.

Microplastics may be a macro problem for the US Great Plains, too, study finds

A new study has found microplastics in every freshwater body tested in Kansas.

From our Newsroom

Climate change, chaos, and cannibalism

Forty eight years ago, a sci-fi thriller predicted a future with all three—in the year 2022.

U.S. Steel abandons clean tech plans in Pittsburgh region following damning health study

The company scraps planned Pennsylvania investments and will instead shut down three polluting batteries in 2023. The announcement comes a week after a study shows lower lung function in people living near its Pittsburgh-region facility.

LISTEN: The allure of regenerative agriculture

"Every being is the full expression of themselves."

Fertility & Environmental Justice: A conversation with Shanna Swan and Annie Hoang

"These toxics chemicals are affecting you—not just the polar bears, the insects, and the birds."

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.

Can marine protected areas reduce marine disease?

EHN talked to marine disease experts about the role of increasing ocean protection in combating rising disease rates.

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