Welcome to the Sierra Club - Wisconsin Chapter.
We are Wisconsin's voice for the nation's oldest, largest and most influential grassroots environmental organization. Our members include 18,000 of your friends and neighbors. Inspired by Wisconsin’s beautiful lakes, forests, rivers, and other natural features, we work together to protect our communities and the planet.
Looking to take action on the most pressing issues in Wisconsin?
Make a Difference for Wisconsin's Future!
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Local News and Information
ICYMI - Wisconsin Gubernatorial Candidates Show Concern for Line 5
June 1, 2026
At a recent Gubernatorial Forum focused on Wisconsin’s energy and electric sector, candidates shared strong words about Enbridge’s controversial Line 5 pipeline reroute project, which has been partially stayed by a Circuit Court Judge.
Earth Day Round-Up Part 3: What's next?
May 29, 2026
With such a busy April behind us, it’s natural to ask: what’s next? The rest of the year will be filled with opportunities to take action — from stopping new fossil fuel infrastructure and protecting affordable energy bills to engaging in critical...
Protect our wildest forests
May 29, 2026
Our undeveloped national forests are the heart of our public land. But now one of the most important -- and most underappreciated -- conservation policies is on the verge of being cut by Trump. If the Roadless Area Conservation Rule is repealed, 45...