Our Impact

Since 1970, Clean Wisconsin has been at the center of every historic environmental victory in Wisconsin.

Moving Forward Together

Defending Wisconsin’s Environment

Starting in the 1970s, Clean Wisconsin brought several foundational lawsuits that established the state’s cornerstone environmental law, Wisconsin’s Environmental Policy Act (WEPA), and we’ve continued to be a leading voice for important environmental protections in the five decades since. We have stopped the construction of coal plants, defeated open-pit mining projects, supported the rise of clean energy, and protected critical wetlands, among many other great victories.

Today, Clean Wisconsin continues to focus on the most important environmental issues affecting out state.

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Action Network

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our impact

Recent Victories

A farmer with a large tractor spreading liquid manure on a ploughed field on an overcast spring day.

DNR requires Kinnard Farms to test groundwater for manure pollution

For the first time, the Wisconsin Department of Natural Resources (DNR) is using its permitting authority to require a large-scale dairy operation to monitor groundwater pollution around farm fields where it spreads manure. The move stems from last summer’s Clean Wisconsin v. DNR state Supreme Court ruling.
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Lush foliage in a watery swamp
| Press Releases

Wisconsin Supreme Court Denies Meteor Timber Appeal in Wetlands Case

Young girl holding a sunflower stands in front of solar panel
| Press Releases

Koshkonong Solar Farm Approval an Important Step in Wisconsin’s Transition to Clean Energy

White Pine and Red Maple Swamp
| Press Releases

Appeals Court Sides with Clean Wisconsin and Ho-Chunk Nation to Protect Rare Wetland

Residential Electric Meter
| Press Releases

MG&E Agrees to Lower Fixed Charges, Expand Smart Thermostat Program in Rate Case Settlement

| Press Releases

Federal judge strikes down Trump-era water rule

| Press Releases

Supreme Court Sides With Clean Wisconsin In Two Critical Environmental Cases

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