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Join us in celebrating our 2025 certified communities and Climate Leaders. Register early - space is limited!

Join us for a webinar on energy efficiency programs that will help your house of worship reduce energy usage and costs.

John-Henry Burke, Sustainable CT Fellow Extraordinaire, takes over the Big Microphone this month to make some noise about noise pollution in Connecticut.

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We have funds and coaching to support sustainability projects in your community.

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Actions & Impact

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Please join us on October 28th at the Goodspeed Opera House for our 2025 Awards Celebration. Register early - space is limited!

John-Henry Burke, Sustainable CT Fellow, takes over the IMPACT this month to make some noise about noise pollution.

Join IREJN, Eversource, and United Illuminating for our September Coffee Hour on energy efficiency programs that will help your house of worship reduce energy usage and costs.

Climate Leader Designation

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

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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.

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Funders & Sponsors

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Founding Funder

Supporting Funder

Participating Communities

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

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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.