Climage Alliance

The U.S. Climate Alliance, which was established in 2017, is a bipartisan coalition of governors committed to reducing greenhouse gas emissions. This commitment is consistent with the goals of the Paris Agreement which aims to strengthen the global response to the threat of climate change and undertake ambitious efforts to combat and adapt to its effects. What was once a commitment of 16 states and Puerto Rico is continuing to grow in participation and deduction. This Alliance has pledged to implement policies aiming to reduce greenhouse gas emissions, track and report their progress and facilitate new and existing policies to reduce emissions and promote clean energy deployment.

Since its inception in 2017, this alliance has reduced the country’s collective greenhouse gas emissions 14 percent below 2005 levels which is halfway toward our participation of the U.S. Paris Agreement target for 2025. By establishing more ambitious emission reduction targets, this alliance is capable of making a significant impact on global emissions through its leadership and action and continues to identify innovative alternatives and works on strategic partnerships to grow clean energy economies.

Participating states include: California, Colorado, Connecticut, Delaware, Hawaii, Illinois, Louisiana, Maine, Maryland, Massachusetts, Michigan, Minnesota, Nevada, New Jersey, New Mexico, New York, North Carolina, Oregon, Pennsylvania, Puerto Rico, Rhode Island, Vermont, Virginia, Washington, and Wisconsin.

Click here to visit the U.S. Climate Alliance website.

Climate Alliance Regulation
Implement policies that advance the goals of the Paris Agreement, aiming to reduce greenhouse gas emissions by at least 26-28 percent below 2005 levels by 2025
Each state has their own timelines and reduction amounts. Click here for a list of states.

View Climate Alliance information

Compliance Date


Each Climate Alliance state has their own timelines and requirements.
Click here to download the latest U.S. Climate Alliance Fact Sheet for more information.

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Additional Resources

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