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245 00 |a The Role of Carbon Dioxide During the Onset of Antarctic Glaciation |h [electronic resource] |y English.
260        |a [S.l.] : |b American Association for the Advancement of Science, |c 2011-12-02.
490        |a Science Magazine 334.
506        |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.
520 3    |a Earth’s modern climate, characterized by polar ice sheets and large equator-to-pole temperature gradients, is rooted in environmental changes that promoted Antarctic glaciation ~33.7 million years ago. Onset of Antarctic glaciation reflects a critical tipping point for Earth’s climate and provides a framework for investigating the role of atmospheric carbon dioxide (CO2) during major climatic change. Previously published records of alkenone-based CO2 from high- and low-latitude ocean localities suggested that CO2 increased during glaciation, in contradiction to theory. Here, we further investigate alkenone records and demonstrate that Antarctic and subantarctic data overestimate atmospheric CO2 levels, biasing long-term trends. Our results show that CO2 declined before and during Antarctic glaciation and support a substantial CO2 decrease as the primary agent forcing Antarctic glaciation, consistent with model-derived CO2 thresholds.
533        |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.
650        |a climate change.
650        |a carbon dioxide.
650        |a ice sheets.
651        |a Antarctica.
700        |a Mark Pagani.
700        |a Matthew Huber.
700        |a Zhonghui Liu.
700        |a Steven M. Bohaty.
700        |a Jorijntje Henderiks.
700        |a Willem Sijp.
700        |a Srinath Krishnan.
700        |a Robert M. DeConto.
773 0    |t The Role of Carbon Dioxide During the Onset of Antarctic Glaciation
830    0 |a dpSobek.
830    0 |a Sea Level Rise.
852        |a dpSobek |c Sea Level Rise
856 40 |u http://dpanther.fiu.edu/dpService/dpPurlService/purl/FI15050372/00001 |y Click here for full text
856 42 |3 FULL TEXT- The Role of Carbon Dioxide During the Onset of Antarctic Glaciation |u http://science.sciencemag.org/content/334/6060/1261 |y The Role of Carbon Dioxide During the Onset of Antarctic Glaciation
992 04 |a http://dpanther.fiu.edu/sobek/content/FI/15/05/03/72/00001/FI15050372_thm.jpg
997        |a Sea Level Rise


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