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 our priority issues?
⬅️ Check out our Action Center!
Make a Difference for Wisconsin's Future!
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Local News and Information
Circuit Court Issues Order Limiting Pipeline Construction While Lawsuit Over Line 5 Permits Moves Forward
May 15, 2026
For immediate release: May 15, 2026Contact: Peg Sheaffer, Midwest Environmental Advocates, psheaffer@midwestadvocates.org, 608-247-9684 Jacob Ahrens-Balwit, Clean Wisconsin, jbalwit@cleanwisconsin.org, 608-333-1961 Iron County, WI—...
Earth Month Round Up- Part 1
May 15, 2026
But even amid these setbacks, our Earth Month was packed with energy, action, and important wins. From inspiring events and educational programs to major victories protecting Wisconsinites from subsidizing massive data centers, supporters across the...
Environmental groups call out invalid Line 5 permit application: Enbridge is not eligible
May 4, 2026
Environmental organizations submitted formal comments to the Wisconsin Department of Natural Resources (DNR) opposing a series of applications for permits that would allow Enbridge Energy to do work at various stream crossings along the proposed...