Action Alert: Hold Congress Accountable for the Big Ugly Bill

Healthier Future for Wisconsin

A Legacy of Victory

Clean Wisconsin has been your environmental voice since 1970. We turn advocacy into lasting, statewide change, protecting the air we breathe, the water we drink, and the land we love.

Fighting—and Winning—for Wisconsin’s Future

Clean Wisconsin helped shape the foundation of environmental law in our state, bringing landmark lawsuits that established the Wisconsin Environmental Policy Act (WEPA). In the decades since, we’ve remained at the forefront of progress: stopping coal plants, halting open-pit mines, advancing clean energy, and protecting wetlands. Today, we champion solutions for the most urgent environmental issues facing Wisconsin.

Decades of Progress

From landmark legal wins in the 1970s to bold climate and water protections today, our victories have shaped Wisconsin’s environmental legacy. Explore key moments that show what’s possible when science, advocacy, and community come together.

1970s
Established Wisconsin Environmental Policy Act
Passed Power Plant Siting Law
1980s
water coming out of a well contaminated by nitrates
Passed Comprehensive Groundwater Protection Act
Secured Lower Wisconsin Riverway Protections
1990s
Established Wetland Water Quality Standards
A publication of the defender outlining the mining moratorium act
Passed Mining Moratorium Act
2000s
coal plant smoke stacks
Established Wisconsin Power Plant Mercury Rule
Passed Great Lakes Compact
2010s
Protected Van Loon Bottoms State Natural Area
Passed Statewide Microbead Ban
2020s
Air Pollution Protections: Clean Wisconsin v. EPA
Supreme Court Win: CAFO Water Protections

Recent Wins

From curbing PFAS pollution to advancing clean energy, our recent wins show what’s possible when science, advocacy, and community come together. Here’s what we’ve accomplished lately—and where we’re headed next.

See All Wins
Reinforced Protections Against Untreated Animal Waste
Supreme Court Win: High-Capacity Well Protections
Supreme Court Win: CAFO Water Protections
Saved Rare Wisconsin Wetland

How You Can Make a Difference

Protecting Wisconsin’s environment takes all of us. Whether you donate, sign petitions, or attend events, your actions make a difference.

Make a Donation

Your support fuels the fight for clean air, water, and energy. Every dollar helps us hold polluters accountable and drive change.

Give for a Greener Future

Become a Member

Join Wisconsin’s largest environmental advocacy network and stand with us in the fight for a cleaner future.

Stand With Us

Take Action

Your voice has power. Sign petitions, contact legislators, and push for policies that protect Wisconsin.

Make an Impact

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Get the latest news, victories, and action opportunities delivered straight to your inbox.

Stay In the Loop

Attend an Event

Be part of the movement. Connect with experts and advocates working to protect Wisconsin’s environment.

Get Involved