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Arctic permafrost carbon floods the ocean, but seafloor captures most of it
Thawing Arctic permafrost is releasing ancient carbon into the ocean, raising fears that microbes could convert it into greenhouse gases and worsen climate change. However, sediment cores collected near Canada's Herschel Island show that most of this land-based carbon becomes buried in the seafloor, with only about 10 percent converted into gases. The findings offer a more reassuring picture than previously feared, though climate risks remain.
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