Protecting and preserving Wisconsin’s clean water, clean air, and natural heritage.

Join us for Epicurean Evening

Exquisite fare. Artisan cocktails. Stunning views.

In support of our clean water, clean air, and natural heritage.

Our air. Our health.

Smog pollution harms our health.

Learn the facts and get alerts about ozone pollution.

The Spring Issue of Defender

In this issue: clean energy, algae blooms, drinking water protections.

Legal win for our wetlands

Our legal victory over a troubling wetland fill permit issued by the DNR is a significant victory for the people of Wisconsin, our pristine wetlands, and the integrity of our environmental laws.