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California Shows How States Can Lead on Climate Change

Attention now turns to the Northeast, where nine states, including New York, Connecticut and Massachusetts, are part of what is known as the Regional Greenhouse Gas Initiative, which, like California’s effort, is a market-based cap-and-trade program that goes beyond state boundaries. So far, R.G.G.I., as it is known for short, has helped reduce emissions from power plants in the region by 40 percent between 2008 and 2016, according to the Acadia Center, a research and public interest group. States are now negotiating the future of the program beyond 2020.

Read the full editorial from The New York Times here.