Why It Matters
Wisconsin’s Milwaukee County has formally reaffirmed its commitment to the Paris Climate Agreement, positioning itself among a growing number of local and state governments that are maintaining climate targets independently of federal policy. The move carries direct implications for county-level environmental planning, energy use, and public health initiatives across the region.
The decision comes after President Donald Trump withdrew the United States from the Paris Agreement for a second time in 2025, following an earlier withdrawal during his first term in 2017. As federal climate commitments recede, counties and municipalities are increasingly stepping in to fill the policy gap.
What Happened
Milwaukee County Executive David Crowley and County Board President Marcelia Nicholson-Bovell signed legislation on Wednesday, April 2, 2026, reaffirming the county’s adherence to the goals established under the 2016 Paris Climate Agreement. The signing took place at the Urban Ecology Center of Washington Park in Milwaukee.
“In Milwaukee County, we know that the climate crisis is a real, pressing threat to our environment, our economy, our health, and our quality of life,” Crowley said at the event, which was attended by other local officials.
The Paris Climate Agreement, originally adopted in 2016, calls on participating nations to implement policies designed to keep average global temperatures from rising more than 2 degrees Celsius above pre-industrial levels. The United States first joined the agreement under President Barack Obama, alongside nearly 200 other nations and states.
President Trump exited the agreement following his January 2025 inauguration, his second withdrawal from the accord. He has described the agreement as “unfair,” “one-sided,” and a “rip-off” to American interests.
By the Numbers
2 degrees Celsius — The maximum temperature increase threshold targeted by the Paris Climate Agreement above pre-industrial levels.
~200 — The number of nations and sub-national governments that originally signed onto the Paris Agreement under the Obama administration.
2 — The number of times the United States has formally withdrawn from the Paris Agreement, both under President Trump, in 2017 and again in 2025.
1 — The number of times the U.S. rejoined the agreement, under Former President Biden, before the most recent withdrawal.
Zoom Out
Milwaukee County’s action reflects a broader pattern emerging across the United States since the Trump administration’s most recent exit from the Paris Agreement. Local governments, counties, and state legislatures in multiple states have moved to formally anchor their own climate commitments to the agreement’s framework, effectively operating on a parallel track from federal environmental policy.
This dynamic is not new. Following Trump’s first withdrawal in 2017, the “We Are Still In” coalition formed, eventually representing thousands of U.S. cities, counties, businesses, and universities pledging to uphold the Paris targets. A similar mobilization appears to be taking shape in the current political environment.
In Wisconsin, the intersection of energy infrastructure and environmental policy has become a growing point of public debate. Wisconsin residents recently voiced concerns over data center energy costs and environmental impact at an online town hall, highlighting how local communities are increasingly engaged with questions about energy consumption and climate outcomes at the county level.
Milwaukee County has also been managing other public health challenges alongside its environmental agenda. Milwaukee overdose deaths fell to their lowest level since 2016 as a community health initiative expanded, reflecting the county’s broader approach to tackling interconnected quality-of-life issues that often correlate with environmental and economic conditions.
What’s Next
With the legislation now signed, Milwaukee County officials are expected to outline specific implementation steps tied to the Paris Agreement’s benchmarks, including potential updates to county energy usage policies, emissions tracking, and sustainability planning.
County officials have not yet detailed a formal timeline for reporting progress toward the agreement’s temperature and emissions targets. It remains unclear how the county plans to align its commitments with Wisconsin state-level environmental regulations or how it will measure adherence without federal coordination.
The signing is likely to prompt similar discussions in other Wisconsin municipalities watching Milwaukee County’s approach. As the 2026 election cycle intensifies, climate policy at the local level is expected to remain a visible issue in races across the state.