A giant reservoir of “secret” fresh water off the East Coast that could potentially supply a city the size of New York City for 800 years may have formed during the last ice age, when the region was covered in glaciers, researchers say.
Preliminary analyses suggest the reservoir, which sits beneath the seafloor and appears to stretch from offshore New Jersey as far north as Maine, was locked in place under frigid conditions around 20,000 years ago, hinting that it formed in the last glacial period due, partly, to thick ice sheets.
Last summer, researchers went on an expedition to follow up on reports from the late 1960s and early 1970s of fresh water beneath the seafloor off the East Coast. “It was quite the project and sort of a lifelong dream,” Brandon Dugan, the expedition’s co-chief scientist and a professor of geophysics at the Colorado School of Mines, told Live Science…