Rapid Cenozoic glaciation of Antarctica induced by declining atmospheric CO2

@article{DeConto2003RapidCG,
  title={Rapid Cenozoic glaciation of Antarctica induced by declining atmospheric CO2},
  author={Robert M. DeConto and David D. Pollard},
  journal={Nature},
  year={2003},
  volume={421},
  pages={245-249}
}
The sudden, widespread glaciation of Antarctica and the associated shift towards colder temperatures at the Eocene/Oligocene boundary (∼34 million years ago) (refs 1–4) is one of the most fundamental reorganizations of global climate known in the geologic record. The glaciation of Antarctica has hitherto been thought to result from the tectonic opening of Southern Ocean gateways, which enabled the formation of the Antarctic Circumpolar Current and the subsequent thermal isolation of the… 
Changing Southern Ocean palaeocirculation and effects on global climate
: Southern Ocean palaeocirculation is clearly related to the formation of a continental ice sheet on Antarctica and the opening of gateways between Antarctica and the Australian and South American
Changing Southern Ocean palaeocirculation and effects on global climate
  • A. Mackensen
  • Environmental Science, Geography
    Antarctic Science
  • 2004
Southern Ocean palaeocirculation is clearly related to the formation of a continental ice sheet on Antarctica and the opening of gateways between Antarctica and the Australian and South American
Large-scale glaciation and deglaciation of Antarctica during the Late Eocene
Approximately 34 m.y. ago, Earth's climate transitioned from a relatively warm, ice-free world to one characterized by cooler climates and a large, permanent Antarctic Ice Sheet. Understanding this
Antarctic glaciation caused ocean circulation changes at the Eocene–Oligocene transition
TLDR
It is found that growth of the Antarctic ice sheet caused enhanced northward transport of Antarctic intermediate water and invigorated the formation of Antarctic bottom water, fundamentally reorganizing ocean circulation, whereas gateway openings had much less impact on ocean thermal stratification and circulation.
Thresholds for Cenozoic bipolar glaciation
TLDR
It is found that Oi-1 is best explained by Antarctic glaciation alone, combined with deep-sea cooling of up to 4 °C and Antarctic ice that is less isotopically depleted than previously suggested, which implies that episodic northern-hemispheric ice sheets have been possible some 20 million years earlier than currently assumed and could explain some of the variability in Miocene sea-level records.
Atmospheric and oceanic impacts of Antarctic glaciation across the Eocene–Oligocene transition
TLDR
It is shown that the global atmosphere and ocean response to growth of the Antarctic ice sheet is sensitive to subtle variations in palaeogeography, using two reconstructions representing Eocene and Oligocene geological stages using the HadCM3L model.
Eocene bipolar glaciation associated with global carbon cycle changes
The transition from the extreme global warmth of the early Eocene ‘greenhouse’ climate ∼55 million years ago to the present glaciated state is one of the most prominent changes in Earth's climatic
Wilkes land glacial history Cenozoic East Antarctic ice sheet evolution from Wilkes Land margin sediments
Understanding the evolution and dynamics of the Antarctic cryosphere, from its inception during the Eocene–Oligocene transition (~33 Ma) through the significant periods of climate change during the
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