Pliocene Warmth, Polar Amplification, and Stepped Pleistocene Cooling Recorded in NE Arctic Russia
2013; American Association for the Advancement of Science; Volume: 340; Issue: 6139 Linguagem: Inglês
10.1126/science.1233137
ISSN1095-9203
AutoresJulie Brigham‐Grette, Martin Melles, P. S. Minyuk, Andrei Andreev, Pavel E. Tarasov, Robert M. DeConto, S. J. Koenig, Norbert R Nowaczyk, Volker Wennrich, Peter Rosén, Eeva Haltia, Timothy L Cook, Catalina Gebhardt, Carsten Meyer‐Jacob, J. A. Snyder, Ulrike Herzschuh,
Tópico(s)Geological Studies and Exploration
ResumoFrom Russia with Lovely Data Climate and the atmospheric concentration of CO 2 are closely linked. Brigham-Grette et al. (p. 1421 , published online 9 May) present data from Lake El'gygytgyn, in northeast Arctic Russia, that shows how climate varied between 3.6 and 2.2 million years ago, an important interval in the global cooling trend that accelerated rapidly at the end of the Miocene. Summer temperatures were about 10°C warmer than today, even though the concentration of atmospheric CO 2 was similar.
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