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Spring Into Summer 2025

Thank you for being part of a community committed to a sustainable Connecticut!

Spring Certified Communities & Climate Leaders

Congrats to our Spring certified communities and Climate Leaders! - Learn more

May podcast: the Twain House

Mallory Howard joins us to talk about all things Twain

Free training, resources, tools

We’re eager to help your community become more sustainable - Learn more

Actions & Impact

Stay up to date with the latest and greatest Sustainable CT news - Learn more

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Mallory Howard from the Mark Twain House joins us for our May podcast.

Join our June Coffee Hour to hear from the co-founders of TEAM Westport.

Meet our 2025 Fellows! Now working at a COG near you.

Climate Leader Designation

Celebrating municipalities that are reducing harmful greenhouse gas emissions while saving money, improving public health, and building community.

Learn More

Community Match Fund

A fast, flexible program to support sustainability initiatives throughout Connecticut. Get inspired to start your own Community Match Fund campaign by viewing our flipbook of recent projects.

Get Inspired

Participating Communities

View the map of Connecticut’s registered communities. Search the completed actions database.

View Map

Certification Program Statistics

If your municipality is not yet registered with Sustainable CT, or if your town is registered but has not yet considered working towards certification, please contact us. We’d be happy to speak with you, provide any information you may need, and discuss next steps.