Massport announced plans on Friday to spend $60 million to build an electric power system allowing some specially-equipped cruise ships to plug in and switch off diesel engines while docked.

Kyle Murray, who directs state policy at the Acadia Center, a New England environmental and clean energy nonprofit, says the support marks a shift in statements from policymakers — who once generally only praised the economic boons of shipping in the region.

“(Shipping) has flown under a lot of groups’ radar because it’s so complicated to decarbonize these sectors,” he said.

An ambitious climate bill, passed last week by the Legislature, revised Massport’s charter to require the agency focus on greenhouse gas emissions and impact on local communities.

“That’s a part of their mission going forward,” Murray said. “I think we’re going to see a lot more attention drawn to this this going forward.”

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