A new temperature record challenges the extreme high-latitude warmth paradigm
MARUM - Center for Marine Environmental Sciences, University of BremenPeer-Reviewed Publication
Reliable predictions of how the Earth's climate will respond as atmospheric carbon dioxide levels increase are based on climate models. These models, in turn, are based on data from past geological times in which the CO2 content in the Earth's atmosphere changed in a similar way to today and the near future. The data originate from measurable indicators (proxies), the interpretation of which is used to reconstruct the climate of the past. A team of researchers has now published a new North Atlantic temperature record from the past 16 million years in Nature Communications, applying clumped-isotope geochemistry on fossil calcareous algae (coccoliths) of unprecedented purity. Their findings show that the North Atlantic was significantly colder than previously assumed based on earlier reconstructions, supporting the findings of climate model simulations and challenging the paradigm of the extreme Miocene high latitude warmth.
- Journal
- Nature Communications