Stop unchecked data center development

Healthier Future for Wisconsin

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Our vision of a data center policy framework

Data Centers

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The Defender Episode 88: We Need to Talk About Cancer Rates in Iowa

We Need to Talk About Cancer Rates in Iowa

Drinking WaterFarming & FoodHealth ResearchNitratesOur HealthOur LandOur WaterPesticidesPFASToxic Chemicals

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Clean Wisconsin sues EPA over repeal of power plant carbon reduction rules

Air PollutionFighting Fossil FuelsLegal

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Our Wild 2026: What’s Ahead for Wisconsin’s Weather

Our Climate

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Enbridge Line 5 pipeline spill, 08-25-2026, Courtesy: David Joe Bates

BREAKING: Enbridge illegally building bypass to restart Line 5 after spill

Air PollutionFighting Fossil FuelsLegalToxic Chemicals

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SPECIAL EPISODE: Line 5 Pipeline Spill

Fighting Fossil FuelsLegalToxic Chemicals

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Enbridge Pipeline Spill, Iron County, August 25, 2026

Public still in the dark more than a week after toxic pipeline spill

Air PollutionFighting Fossil FuelsLegalToxic Chemicals

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Clean Wisconsin, Sierra Club Take Legal Action to Defend Federal Air Pollution Safeguards

Air PollutionLegalOur Health

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The Defender Podcast Episode 85: Good News for the Rusty-patched Bumblebee!

Good News for the Rusty-Patched Bumblebee!

Our LandPesticides

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The legacy of Katie Nekola

Legal

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