<
https://theconversation.com/sand-sized-fossils-hold-secrets-to-the-history-of-climate-change-250928>
"Between 18,000 and 11,000 years ago, the amount of carbon dioxide in the
atmosphere suddenly shot up. This caused rapid global warming, the mass melting
of glaciers, and the end of the last ice age.
Much of this sudden influx of atmospheric CO₂ came from the Southern Ocean
around Antarctica, highlighting the key role this body of water plays in
regulating the global climate.
However, we have a poor understanding of how and why CO₂ release from this
region changed during periods such as the end of the last ice age. But our new
study, published in
Nature Communications, reveals how much CO₂ was released
to the atmosphere from the polar Southern Ocean during this period – and what
factors were responsible.
We reached these conclusions by examining the chemistry of sand-sized fossils,
called foraminifera, from the seafloor south of Tasmania."
Cheers,
*** Xanni ***
--
mailto:xanni@xanadu.net Andrew Pam
http://xanadu.com.au/ Chief Scientist, Xanadu
https://glasswings.com.au/ Partner, Glass Wings
https://sericyb.com.au/ Manager, Serious Cybernetics
