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The Regional Greenhouse Gas Initiative (RGGI) is a joint cap-and-trade program committed to reducing carbon dioxide emissions from the power sector in Connecticut, Delaware, Maine, Maryland, Massachusetts, New Hampshire, New York, Rhode Island, and Vermont.

A Decade of Cap-and-Trade Leadership in RGGI

Learn more about the history of RGGI and cap and trade.

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Decarbonization in Vermont

Read about policies to reduce greenhouse gas emissions in this RGGI state.

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