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|a Global warming preceded by increasing carbon dioxide concentrations during the last deglaciation |h [electronic resource]. |
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|a [S.l.] : |b Macmillan Publishers Limited, |c 2012-04-05. |
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|a Nature Magazine Volume 484. |
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|a Please contact the owning institution for licensing and permissions. It is the user's responsibility to ensure use does not violate any third party rights. |
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|a The covariation of carbon dioxide (CO2) concentration and temperature in Antarctic ice-core records suggests a close
link between CO2 and climate during the Pleistocene ice ages. The role and relative importance of CO2 in producing these
climate changes remains unclear, however, in part because the ice-core deuterium record reflects local rather than
global temperature. Here we construct a record of global surface temperature from 80 proxy records and show that
temperature is correlated with and generally lags CO2 during the last (that is, the most recent) deglaciation. Differences
between the respective temperature changes of the Northern Hemisphere and Southern Hemisphere parallel variations
in the strength of the Atlantic meridional overturning circulation recorded in marine sediments. These observations,
together with transient global climate model simulations, support the conclusion that an antiphased hemispheric
temperature response to ocean circulation changes superimposed on globally in-phase warming driven by increasing
CO2 concentrations is an explanation for much of the temperature change at the end of the most recent ice age. |
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|a Electronic reproduction. |c Florida International University, |d 2015. |f (dpSobek) |n Mode of access: World Wide Web. |n System requirements: Internet connectivity; Web browser software. |
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|a dpSobek |c Sea Level Rise |
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|u http://dpanther.fiu.edu/dpService/dpPurlService/purl/FI15050309/00001 |y Click here for full text |
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|a http://dpanther.fiu.edu/sobek/content/FI/15/05/03/09/00001/FI15050309_thm.jpg |