How fossil corals can shed light on Earth's past climate

Researchers have used radiocarbon measured in deep-sea fossil corals to shed light on carbon dioxide levels during Earth's last deglaciation. Fossil corals have the unique advantage that they can be precisely dated by radiometric uranium-series dating, giving an age scale that can be directly compared to the ice core records.

from Oceanography News -- ScienceDaily http://ift.tt/1NYQQ1y
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