Triggering Mechanisms and Carbon Sequestration Timescales of Late Paleocene-Early Eocene Carbon Cycle Perturbations ...

The representative concentration pathway (RCP) 8.5 of the the intergovernmental panel on climate change (IPCC) indicates that if anthropogenic carbon emissions follow dramatic increasing trends, in the next ~200-300 years mean global temperatures can be ~5-10oC higher than today. This temperature in...

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Bibliographic Details
Main Author: Piedrahita Velez, Victor
Format: Article in Journal/Newspaper
Language:English
Published: The Australian National University 2023
Subjects:
Online Access:https://dx.doi.org/10.25911/ymdh-k407
https://openresearch-repository.anu.edu.au/handle/1885/288186
Description
Summary:The representative concentration pathway (RCP) 8.5 of the the intergovernmental panel on climate change (IPCC) indicates that if anthropogenic carbon emissions follow dramatic increasing trends, in the next ~200-300 years mean global temperatures can be ~5-10oC higher than today. This temperature increase may generate climate conditions similar to those of the late Paleocene-early Eocene (~58-52 Ma), which recorded the highest temperatures in the last ~60 Ma. Late Paleocene-early Eocene climates were characterized by a series of light carbon injections that produced major global warming/ocean acidification events called hyperthermals, and other smaller carbon cycle perturbations. Although late Paleocene-early Eocene geological records offer a possibility to identify global warming impacts under the worst anthropogenic-driven climatic scenario, important aspects related to the triggers and environmental responses of late Paleocene-early Eocene carbon cycle perturbations remain elusive. Here, two major ...