‘Massive pool’ of methane discovered hidden deep underground

Date: August 27, 2019

Source: NBC News
Author: Tom Metcalfe

In a discovery that helps solve a longstanding geological mystery and yields new insights into the rise of life on Earth and possibly elsewhere, researchers have found a vast reservoir of methane deep under the ocean floor.

The methane was found not in a single deposit but locked inside rocks that lie between Earth’s crust and the underlying mantle layer. Worldwide, the rocks are believed to contain billions of tons of the odorless, colorless gas, which is a key constituent of natural gas as well as a potent greenhouse gas.

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