Q: Why are the two candidates running for governor, Democrat Maura Healey and Republican Geoff Diehl, arguing about natural gas pipelines that never got built?A: It’s actually a very interesting issue, and one that goes to the heart of an ongoing and important debate about the best way to keep the lights on in Massachusetts and across New England while reducing greenhouse gas emissions.Q: What’s the debate about?A: In broad terms, the debate is about the best way to wean the state and region off of fossil fuels. One side says we must move as quickly as possible given the pace of climate change. Those who hold this view don’t want new fossil fuel infrastructure built and want to phase out the existing infrastructure as fast as they can. A good example of this philosophy was the Legislature’s vote earlier this year to launch a pilot program allowing 10 communities to ban fossil fuel infrastructure in new construction.
|CARLIN STIEHL FOR THE BOSTON GLOBE|