Stop unchecked data center development

Healthier Future for Wisconsin

Policy Advocacy

We work with lawmakers, agencies, and communities to advance environmental policies that protect Wisconsin’s air, water, land, and climate—guided by science and driven by our shared vision for a clean Wisconsin.

Our Approach to Environmental Advocacy

Clean Wisconsin is a trusted voice at the Capitol, advancing policies that address the root causes of environmental harm and support long-term resilience. We engage deeply in the legislative process—reviewing bills, educating lawmakers, drafting testimony, and mobilizing residents to speak out. Our work spans a wide range of issues:

  • Tackling PFAS contamination in drinking water
  • Reducing nitrate pollution from agriculture
  • Promoting clean, renewable energy and energy efficiency
  • Protecting wetlands, groundwater, and surface water
  • Advancing policies that address climate change and reduce harmful emissions
  • Advocating for funding in the state budget to address Wisconsin’s most critical environmental challenges

Stories That Matter

PFAS spending legislation brings relief to Wisconsin communities

Policy Wins That Matter

Compromise reached on PFAS spending bill

Clean Wisconsin’s work to find a compromise on PFAS aid for affected communities turned out to be our most successful legislative campaign in over a decade.

Established New Standards for Industrial Air Pollutants

A legal case brought by Clean Wisconsin against the EPA in 2017 forced the agency to adopt new health standards for more than a dozen harmful industrial sources.

See All Policy Victories

Policy News and Analysis

Compromise on PFAS Aid Passes in Wisconsin!

Legislation now heads to the Governor to sign.

Thousands sign petition to pause AI data center approvals in Wisconsin

Petition calls for a comprehensive state plan to ensure AI data center development will not harm communities

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