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.
Make a Difference for Wisconsin's Future!
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Local News and Information
The Common Loon: A Symbol of the Northwoods
July 26, 2024
The common loon is a fascinating bird to see and hear on our northern Wisconsin lakes.
It has come to represent the wildness and untamed beauty of the Northwoods. Its haunting call is other-worldly, bringing a sense of tranquility...
Support our work through Team Sierra by September 2
July 22, 2024
Our teams work daily on these issues, but only ask for people to support their work once a year. You can support our teams as they run Team Sierra Campaigns through August. Learn more about the teams and donate below. Let’s help them reach their $...
Your Comment Needed to Stop Line 5
June 18, 2024
Earlier this month, in eight hours of public comment, the Army Corps heard our call loud and clear: reject permits for Line 5. Hundreds of people turned out in Ashland, Wisconsin because of their concerns for the Great Lakes! Comments at the...
Clear Clutter, Create Change!
June 4, 2024
Spring cleaning season is well underway! Here's a refreshing idea to enhance your season of renewal: donate your unused vehicle to the Sierra Club Foundation and support the work of the Wisconsin Chapter.
Celebrate Endangered Species Day on May 17th
May 15, 2024
Endangered Species Day is celebrated every year on the third Friday in May, providing the opportunity to learn about and take action to help endangered species.