Scientists 'drill, baby, drill,' and find freshwater deep beneath the ocean floor off the North Atlantic coast

The U.S. already faces a freshwater crisis, brought on by drought, higher temperatures, overuse and pollution. But a scientific dig into the North Atlantic seafloor more than 50 years ago could offer a surprising solution. "It found, of all things. . . fresh water," report Calvin Woodward, Carolyn Kaster and Rodrique Ngowi of The Associated Press. 

Fast forward to this summer, when researchers were following up on the past discovery. "A first-of-its-kind global research expedition [is] drilling for fresh water under the salt water off Cape Cod," AP reports. Researchers pulled thousands of water samples from what is now "thought to be a massive, hidden aquifer stretching from New Jersey as far north as Maine."

Do these freshwater troves exist in coastal areas around the globe? Scientists agree that it's likely that the aquifers exist in shallow salt waters around the world. Even so, the "secret fresh water" comes with a litany of challenges, from how to get it to the surface without harming surrounding marine life to questions about who owns it.

As data centers and record heat in some areas rapidly slurp up fresh water, researchers and world leaders are motivated to finance a different kind of drilling. AP reports, "No one globally had drilled systematically into the seabed on a mission to find freshwater."

Under-ocean water samples are being analyzed to discover where they came from, how old they are and what microorganisms thrive in water hidden under the ocean. The discovery and sampling are so dramatic that some scientists are ecstatic. Geophysicist Rob Evans, whose 2015 expedition helped point the way, told AP, “There’s a ton of excitement that finally they’ve got samples.”