As a group of Northeastern and mid-Atlantic states begins to design a system to curb regional transportation emissions, planners are expected to turn to the decade-old Regional Greenhouse Gas Initiative as a model. Experts say the initiative can provide a good starting point, but that important questions must be answered to translate the concept to transportation.

“We can’t simply cut and paste [the Regional Greenhouse Gas Initiative] and apply it to the transportation sector,” said Jordan Stutt, carbon programs director at environmental nonprofit the Acadia Center. “There are a lot of considerations that need to be made which are specific to the way we move people and goods.”

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