Deep sea coral time machines reveal ancient CO2 burps

Date: October 16, 2020

Source: ScienceDaily
Author: University of Bristol

The fossilised remains of ancient deep-sea corals may act as time machines providing new insights into the effect the ocean has on rising CO2 levels, according to new research carried out by the Universities of Bristol, St Andrews and Nanjing and published today [16 October] in Science Advances.

Rising CO2 levels helped end the last ice age, but the cause of this CO2 rise has puzzled scientists for decades. Using geochemical fingerprinting of fossil corals, an international team of scientists has found new evidence that this CO2 rise was linked to extremely rapid changes in ocean circulation around Antarctica.

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