Air Pollution

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Healthier Future for Wisconsin

Clean Wisconsin sues EPA over repeal of power plant carbon reduction rules

September 17, 2026

This unlawful rollback will have devastating consequences if allowed to stand…

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Enbridge Line 5 pipeline spill, 08-25-2026, Courtesy: David Joe Bates

BREAKING: Enbridge illegally building bypass to restart Line 5 after spill

September 10, 2026

DNR rebukes Canadian oil giant Enbridge over a "growing list of environmental concerns and violations" at Line 5.…

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Enbridge Pipeline Spill, Iron County, August 25, 2026

Public still in the dark more than a week after toxic pipeline spill

September 3, 2026

Incident appears to be the largest reported oil and gas pipeline spill in Wisconsin history.…

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Clean Wisconsin, Sierra Club Take Legal Action to Defend Federal Air Pollution Safeguards

August 31, 2026

"This is about protecting families along the lakeshore—in places like Kenosha, Milwaukee and Sheboygan—who are being harmed by the air they breathe."…

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How do ozone levels impact public health in Wisconsin?

August 6, 2026

Unlike the protective ozone layer high in the atmosphere, ground-level ozone damages the lungs and respiratory system, increasing the risk of asthma attacks, respiratory illness, hospitalization, and premature death.…

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Do AI Data Centers Hurt Your Health?

July 20, 2026

In this episode, find out the health and energy consequences of AI data centers.…

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Smoke over Monona Bay in Madison, Wis. Clean Wisconsin

Clean Wisconsin Analysis Shows Dramatic Health Harms of Wildfire Smoke in Wisconsin

July 15, 2026

Wildfire smoke exposure accounts for an estimated 250 premature deaths in Wisconsin every year, according to a new analysis from Clean Wisconsin. …

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Smoke from Canadian wildfires drifts down to Wisconsin and the Midwest.

Under the Lens: What we’re learning about wildfire smoke in Wisconsin

July 15, 2026

Smoky skies from distant wildfires in Canada and the Western United States have becomes an increasingly frequent occurrence here in Wisconsin.…

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EPA Proposal Could Delay Smog Cleanup by a Decade or More in Wisconsin

July 14, 2026

The EPA's proposal is not just bad policy but unlawful — contradicting the plain text, structure, and purpose of the Clean Air Act.…

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Port Washington data center could harm Wisconsinites’ health to the tune of $1.3 million annually

April 14, 2026

New analysis from Clean Wisconsin finds that air pollution from diesel generators at the hyperscale Vantage data center in Port Washington could cause $960,000 to $1.29 million in annual public health costs statewide. …

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