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Past climates inform our future.

Authors:
Jessica E Tierney Christopher J Poulsen Isabel P Montañez Tripti Bhattacharya Ran Feng Heather L Ford Bärbel Hönisch Gordon N Inglis Sierra V Petersen Navjit Sagoo Clay R Tabor Kaustubh Thirumalai Jiang Zhu Natalie J Burls Gavin L Foster Yves Goddéris Brian T Huber Linda C Ivany Sandra Kirtland Turner Daniel J Lunt Jennifer C McElwain Benjamin J W Mills Bette L Otto-Bliesner Andy Ridgwell Yi Ge Zhang

Science 2020 11;370(6517)

Department of Oceanography, Texas A&M University, College Station, TX, USA.

As the world warms, there is a profound need to improve projections of climate change. Although the latest Earth system models offer an unprecedented number of features, fundamental uncertainties continue to cloud our view of the future. Past climates provide the only opportunity to observe how the Earth system responds to high carbon dioxide, underlining a fundamental role for paleoclimatology in constraining future climate change. Here, we review the relevancy of paleoclimate information for climate prediction and discuss the prospects for emerging methodologies to further insights gained from past climates. Advances in proxy methods and interpretations pave the way for the use of past climates for model evaluation-a practice that we argue should be widely adopted.

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http://dx.doi.org/10.1126/science.aay3701DOI Listing
November 2020

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