In the Mon Valley — where U.S. Steel has canceled major investment — many left wondering what went wrong

There is passion on both sides of the "jobs" versus "clean air" dispute, but many in the communities most affected by the decision were hoping to have both.

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What COVID and clear skies meant to drinking water for 300 million

Coronavirus lockdowns in South Asia reduced pollution that makes snow melt faster, which could help water supplies last longer this year.

Los Alamos researchers study how wildfire smoke impacts climate

A new tool developed at LANL will analyze moisture levels in wildfire smoke plumes and study how water binds with soot particles.

Allegheny County reports elevated levels of airborne particulates

Allegheny County has issued an air pollution watch for the Mon Valley after it said levels of fine particles increased Tuesday evening and remain elevated.


Pennsylvania group worries that new air pollution permit could allow Clairton coke works to pollute more

A company spokesperson said the purpose of putting in new pollution controls is to improve the efficiency of the pollution collection system, not to increase coke production.


The rubber industry's toxic legacy in Akron

In Akron, Ohio, Black people bore—and bear—the brunt of industry's negative effects, including disease and death.


Air pollution: Over three billion people breathe harmful air inside their own homes

Replacing wood stoves is essential but won't solve the indoor air pollution epidemic on its own.

Mobile sources of pollution significant in Mon Valley, study says

U.S. Steel says soot pollution levels declined significantly when traffic declined during pandemic stay-at-home orders in March.

EPA: Wheeler unveils final rule to limit agency's use of science

The Trump administration, during its last days in power, fired another shot in its war on regulations and science-based policies, rewriting the rules on the use of scientific research at EPA.

Mass. has strong rules about burning wood for electricity. In 2021, it plans to roll them back

Many fear the changes will pave the way for a large biomass facility in Springfield, the "asthma capital" of the country.

Wildfire smoke may spread infectious disease

Smoke from wildfires could be a surprising new route for the spread of microbes, experts believe.

Advocates say removal of 'Shingle Mountain' is only the beginning

Though the city has hired a company to haul Shingle Mountain away, residents of Floral Farms in southeast Dallas say tearing it down would be just the start of the recovery process.


Trump Administration rejects tougher standards on soot, a deadly air pollutant

The EPA has finalized a rule that will keep national soot standards at the same level for another five years, despite a growing body of scientific evidence linking air pollution to lethal outcomes from respiratory diseases such as covid-19.

Report highlights dramatic increase in fuel consumption in Arctic shipping

Fuel consumption by ships plying Arctic waters grew by 82 per cent in recent years, according to a new report by the Arctic Council's Protection of the Arctic Marine Environment (PAME) Working Group.

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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