"In a leafy neighborhood in Framingham, Massachusetts, cars traverse a freshly capped trench conveying a newly implanted pipe below the roadbed. From the jet-black strip of tar at the surface, one could imagine that the local gas company just replaced another of New England’s leaky gas mains. In fact, the infrastructure buried this year in Framingham marks a clean break from fossil-fueled business-as-usual. Rather than delivering combustible methane gas, Framingham's newest piping carries tepid water that’s the lifeblood of a geothermal energy system—technology that could help put gas pipes out of business across the United States."