fossilfinding

Fossil Finding

1 Years ago
Carbon lurking in deep ocean threw ancient climate switch, say researchers: Slowdown of Atlantic circulation sent planet into deep freeze

Carbon lurking in deep ocean threw ancient climate switch, say researchers: Slowdown of Atlantic circulation sent planet into deep freeze

A million years ago, a longtime pattern of alternating glaciations and warm periods dramatically changed, when ice ages suddenly became longer and more intense. Scientists have long suspected that this was connected to the slowdown of a key Atlantic Ocean current system that today once again is slowing. A new study of sediments from the Atlantic bottom directly links this slowdown with a massive buildup of carbon dragged from the air into the abyss.

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