Protecting
Wisconsin’s Future
Your environmental voice since 1970. 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
Clean Wisconsin calls on PSC to reject appeal that would reopen data center tariff case
New research reveals how farmers across Wisconsin can help cut greenhouse gas emissions and protect our soil and water.
See News
Latest News
Expert Insights
6 steps for private well owners to keep their drinking water safe
If you think your well may be contaminated, here are some steps you should take to protect you and your family from the health risks associated with polluted drinking water.
Read More
Expert Insights
Podcasts
Who’s Behind the Avalanche of AI Data Center Moratoriums?
What the rain and snow are telling about PFAS pollution in the Upper Midwest.
Listen Now
Latest Podcast Episode
Health Briefs
PFAS and Health: Contamination in Private and Public Wells in Wisconsin
Once PFAS get into the environment or our bodies, they do not break down, and environmental contamination continues to build as more PFAS are introduced to the environment. Any exposure to PFAS can pose health risks.
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.