Protecting
Wisconsin’s Future
For over 55 years, we’ve been Wisconsin’s leading advocates for clean air, water, and land. Through science, law, and public policy, we fight to protect our environment—and the health of our communities.
Who We Are
Our Approach
How We Drive Change
We turn data into action. Backed by Wisconsin’s only in-house environmental science team, we use science to shape strong environmental policy, and we fight for it through the courts, at the Capitol, and in communities across the state. Because everyone deserves clean air, safe water, and a healthy future.
STAY INFORMED
What’s Happening Now
Press Releases
New Analysis: Data Center Water Consumption Will Be Far Higher Than Tech Companies Claim
When water use at power plants is accounted for, one AI data center could use more water than an entire Wisconsin city.
See News
Latest News
Expert Insights
A splash of color: Transforming green infrastructure in Milwaukee
A new partnership with Quad and ArtWorks for Milwaukee is bringing an added splash of color to Clean Wisconsin’s fight against urban flooding.
Read More
Expert Insights
Podcasts
Wisconsin’s Forbidden Fruit
The amazing story of one Wisconsin food that was banned, burned, disappeared from our plates – and the comeback that’s being helped along by solar farms.
Listen Now
Latest Podcast Episode
Health Briefs
Neonicotinoids and Human Health
Previously thought to pose no risk to humans, there is increasing evidence that neonicotinoids may have harmful health effects.
View Health Brief
Pollution & Your Health
WHO WE ARE
Decades of Wins for Wisconsin
We don’t just advocate—we deliver results. Our victories in policy, legal action, and research are shaping a cleaner Wisconsin.
Discover Our Impact
55+
years working to secure environmental victories.
25000
members and supporters across Wisconsin.
100s
of legal and regulatory actions taken to fight pollution.
4.5
Gigawatts of approved wind and solar supported by Clean Wisconsin
GET INVOLVED
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.
Become a Member
Join Wisconsin’s largest environmental advocacy network and stand with us in the fight for a cleaner future.
Take Action
Your voice has power. Sign petitions, contact legislators, and push for policies that protect Wisconsin.
Subscribe to Emails
Get the latest news, victories, and action opportunities delivered straight to your inbox.
Attend an Event
Be part of the movement. Connect with experts and advocates working to protect Wisconsin’s environment.