🔄FROM THE ARCHIVE The water stored in the inner layers of Earth may be more plentiful — and important — than scientists previously thought.
. Plate tectonics, in turn, is a key part of what makes this planet habitable; it’s like a giant conveyor belt that promotes the steady cycling of heat, water and chemicals. What’s more, Panero says, “it’s largely responsible for keeping Earth’s climate stable over million-year timescales.”
Earlier in his career, Jacobsen didn’t concern himself with where Earth’s water came from — a question, he says, that’s been “discussed in all the major religious texts, including the Quran and Old Testament.” But as estimates of subterranean water grew, he started looking more closely at the rates at which water can be carried to great depths via plate tectonics and subduction.
For that reason, Jacobsen questions the conclusion many astronomers have embraced: namely, that most of. Instead, he believes that substantial quantities must have been here since the planet’s formation and that much of the water in our current oceans was “squeezed out” from rocks below. “What’s cool about the whole story is that we used to look to outer space when pondering the origins of Earth’s water,” Jacobsen says. “But as we gaze deep inside the planet, a thousand or more kilometers down, we’re finding clues from within about the sources of this precious fluid.”, plays handball and volleyball in Cambridge, Massachusetts, where he lives with his wife, two daughters and an unruly dog.
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