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===Antarctica=== [[File:Lawdome75yrco2.svg|thumb|upright=1.6|{{CO2}} mixing ratios at [[Law Dome]]]] Kreutz et al. (1997) compared results from studies of West Antarctic ice cores with the Greenland Ice Sheet Project Two [[GISP2]]; they suggested a synchronous global cooling.<ref name="Hreutz et al 1997">{{cite journal |last1=Kreutz |first1=K. J. |year=1997 |title=Bipolar Changes in Atmospheric Circulation During the Little Ice Age |journal=Science |volume=277 |issue=5330 |pages=1294–1296 |doi=10.1126/science.277.5330.1294 |s2cid=129868172}}</ref> An [[ocean sediment]] core from the eastern Bransfield Basin in the [[Antarctic Peninsula]] shows centennial events, which the authors link to the Little Ice Age and to the Medieval Warm Period.<ref name="Khim 2002 234–245">{{cite journal |doi=10.1006/qres.2002.2371 |bibcode=2002QuRes..58..234K |title=Unstable Climate Oscillations during the Late Holocene in the Eastern Bransfield Basin, Antarctic Peninsula |journal=Quaternary Research |volume=58 |issue=3 |pages=234 |last1=Khim |first1=Boo-Keun |last2=Yoon |first2=Ho Il |last3=Kang |first3=Cheon Yun |last4=Bahk |first4=Jang Jun |year=2002 |s2cid=129384061}}</ref> The authors note that "other unexplained climatic events comparable in duration and amplitude to the LIA and MWP events also appear". The [[Siple Dome]] (SD) had a climate event with an onset time that is coincident with that of the Little Ice Age in the North Atlantic, based on a correlation with the GISP2 record. The Little Ice Age is the most dramatic climate event in the SD Holocene glaciochemical record.<ref>{{cite web|url=http://nsidc.org/data/waiscores/findings/mayewski_findings.html |title=Siple Dome Glaciochemistry |access-date=4 October 2017}}</ref> The Siple Dome ice core also contained its highest rate of melt layers (up to 8%) between 1550 and 1700, most likely because of warm summers.<ref>{{cite web |last1=Das |first1=Sarah B. |last2=Alley |first2=Richard B. |title=Clues to changing WAIS Holocene summer temperatures from variations in melt-layer frequency in the Siple Dome ice core |url=http://igloo.gsfc.nasa.gov/wais/pastmeetings/abstracts00/Das.htm |url-status=dead |archive-url=https://web.archive.org/web/20061007075240/http://igloo.gsfc.nasa.gov/wais/pastmeetings/abstracts00/Das.htm |archive-date=7 October 2006}}</ref> [[Law Dome]] ice cores show lower levels of CO<sub>2</sub> mixing ratios from 1550 to 1800, which Etheridge and Steele believe to be "probably as a result of colder global climate".<ref name="D">{{cite web |last1=Etheridge |first1=D. M. |last2=Steele |first2=L. P. |last3=Langenfelds |first3=R. L. |last4=Francey |first4=R. J. |last5=Barnola |first5=J. -M. |last6=Morgan |first6=V. I. |title=Historical CO<sub>2</sub> Records from the Law Dome DE08, DE08-2, and DSS Ice Cores |url=http://cdiac.ornl.gov/trends/co2/lawdome.html |website=Carbon Dioxide Information Analysis Center |publisher=Oak Ridge National Laboratory, U.S. Department of Energy |publication-place=Oak Ridge, Tennessee}}</ref> Sediment cores in Bransfield Basin, Antarctic Peninsula, have neoglacial indicators by [[diatom]] and sea-ice taxa variations during the Little Ice Age.<ref name="M1998">{{cite journal |doi=10.1017/S0954102098000364 |bibcode=1998AntSc..10..269B |title=Record of Holocene glacial oscillations in Bransfield Basin as revealed by siliceous microfossil assemblages |journal=Antarctic Science |volume=10 |issue=3 |pages=269 |last1=Bárcena |first1=M. Angeles |last2=Gersonde |first2=Rainer |last3=Ledesma |first3=Santiago |last4=Fabrés |first4=Joan |last5=Calafat |first5=Antonio M. |last6=Canals |first6=Miquel |last7=Sierro |first7=F. Javier |last8=Flores |first8=Jose A. |year=1998|s2cid=128443058 }}</ref> Stable isotope records from the Mount Erebus Saddle ice core site suggests that the Ross Sea region experienced average temperatures 1.6 ± 1.4 °C cooler during the Little Ice Age than the last 150 years.<ref>{{cite journal |last1=Rhodes |first1=R. H. |last2=Bertler |first2=N. A. N. |last3=Baker |first3=J. A. |last4=Steen-Larsen |first4=H. C. |last5=Sneed |first5=S. B. |last6=Morgenstern |first6=U. |last7=Johnsen |first7=S. J. |year=2012 |title=Little Ice Age climate and oceanic conditions of the Ross Sea, Antarctica from a coastal ice core record |journal=[[Climate of the Past]] |volume=8 |issue=4 |pages=1223 |bibcode=2012CliPa...8.1223R |doi=10.5194/cp-8-1223-2012 |doi-access=free}}</ref>
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