The small housing development just off Main Street in Concord is almost complete. Many of the neat one-, two- and three-bedroom homes are already occupied, and the rest have just a few plumbing and electrical jobs that need wrapping.

From the outside, this 14-unit development looks relatively unremarkable — except for one key difference: there are no gas hookups, no oil or propane tanks. All the homes are completely fossil-fuel free.

In recent years, small developments such as Concord Millrun have cropped up in recognition that the climate crisis calls for radical changes in our use of fossil fuels. And now, a new climate bill signed last week by Governor Charlie Baker contains a provision that could change the landscape significantly: 10 communities in the state can participate in a pilot program that bans the use of fossil fuels in new buildings and major renovations. Where once they were the exception, in these 10 communities, fossil-fuel-free developments will become the rule.

And if the effort succeeds in those communities, advocates say, the rest of the state could eventually follow.

“Ultimately, we need to stop building with fossil fuels, and the easiest way to decarbonize our buildings is for them not to be carbon-full from the beginning,” said Amy Boyd, policy director of the clean energy advocacy group Acadia Center. “The more we keep building with fossil fuels, the harder it’s going to be.”

Read the full article in The Boston Globe here.