Ancient Arctic carbon is pouring into the sea, but the seabed captures most of it

ScienceDaily reports that thawing Arctic permafrost is releasing ancient carbon into the ocean, raising concerns that microbes could convert it into greenhouse gases and accelerate climate change. But sediment cores collected near Canada's Herschel Island reveal a more reassuring finding: most of this land-based carbon becomes buried in the seafloor, while only about ten percent is converted into gases.

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