Anyone driving through Hanover this summer has surely noticed the construction along East Wheelock, especially the once very deep and huge holes in front of the New Hampshire and Topliff dorms. “It looks like the College is building a subway system,” my husband commented.

Prominently displayed signs suggest otherwise. “Turning the corner from steam to hot water,” says one. “In the trenches to reach our goal,” says another. This construction is the initial stage of a $500m effort by Dartmouth to decarbonize.