Clean Wisconsin

Stop unchecked data center development

Healthier Future for Wisconsin

Nitrates & Health: Drinking Water in Wisconsin

October 30, 2025

Nitrates are Wisconsin’s most widespread groundwater contaminant, threatening the drinking water of over two-thirds of Wisconsinites who rely on groundwater as their primary source of drinking water.…

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Harmful Algal Blooms & Potential Human Health Harms

October 30, 2025

The prevalence of algal blooms has been exacerbated by human activities like land use changes, historic and current over-application and runoff of nutrients in agriculture, the introduction of certain aquatic invasive species into Wisconsin, and climate change. …

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Air pollution from power plant smokestack

Hazardous Air Pollutants & Environmental Justice in Wisconsin

October 30, 2025

Hazardous Air Pollutant (HAPs) can cause cancer or other serious health effects but there are currently no air quality standards for HAPs.…

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Bad River at Copper Falls

Fight to protect Wisconsin’s waterways and wetlands continues

October 30, 2025

What's next for Line 5 after the Army Corps of Engineers granted a federal permit for the pipeline reroute project.…

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New commercial building codes coming to Wisconsin

October 29, 2025

This updated code means new buildings will be more energy efficient, more affordable, more comfortable, and more durable. …

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The Milwaukee Way: Cultivating community and resilience through green infrastructure

October 26, 2025

To best understand the impacts of our green infrastructure work, we turn to the residents who have received green infrastructure installations, attended workshops, and helped spread knowledge to their neighbors.…

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Episode 57: Lily Hislop, Savanna Institute

Wisconsin’s Forbidden Fruit

October 22, 2025

The amazing story of one Wisconsin food that was banned, burned, disappeared from our plates – and the comeback that’s being helped along by solar farms.…

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Wisconsin AI Data Center Power Needs Analysis and Comparison

October 21, 2025

Three AI data centers in Wisconsin will use far more energy than all of the homes in Wisconsin combined.…

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Line 5 Contested Case Hearing Full Opening Statement

October 21, 2025

Clean Wisconsin attorney Evan Feinauer delivers the opening statement in our legal challenge against the Line 5 oil pipeline.…

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Question mark over a wetland

Clear As Mud: Hidden thirst of data centers

October 9, 2025

Large energy demands, and often corresponding water needs, pose a risk to Wisconsin’s water resources.…

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