An Ancient Carbon Mystery

@article{Pagani2006AnAC,
  title={An Ancient Carbon Mystery},
  author={M Pagani and Ken Caldeira and David F. Archer and James C. Zachos},
  journal={Science},
  year={2006},
  volume={314},
  pages={1556 - 1557}
}
Sudden global warming 55 million years ago provides evidence for high climate sensitivity to atmospheric CO, but the source of the carbon remains enigmatic. 
Carbon dioxide forcing alone insufficient to explain Palaeocene–Eocene Thermal Maximum warming
About 55 million years ago global surface temperatures increased by 5–9 ∘C within a few thousand years, following a pulse of carbon released to the atmosphere. Analysis of existing data with a carbon
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Thesis: Ph. D., Joint Program in Chemical Oceanography (Massachusetts Institute of Technology, Department of Earth, Atmospheric, and Planetary Sciences; and the Woods Hole Oceanographic Institution),
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during this event. A range of atmospheric and oceanicemission scenarios representing different amounts, rates,and isotopic signatures of emitted carbon are used tomodel the PETM onset. The first 3
Redox-controlled carbon and phosphorus burial: A mechanism for enhanced organic carbon sequestration during the PETM
Abstract Geological records reveal a major perturbation in carbon cycling during the Paleocene–Eocene Thermal Maximum (PETM, ∼56 Ma), marked by global warming of more than 5 °C and a prominent
Productivity feedback did not terminate the Paleocene-Eocene Thermal Maximum (PETM)
Abstract. The Paleocene-Eocene Thermal Maximum (PETM) occurred approximately 55 million years ago, and is one of the most dramatic abrupt global warming events in the geological record. This warming
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TLDR
The authors' results provide evidence for a previously unrecognized discrete shift in the state of the climate system during the PETM, characterized by large increases in mid-latitude tropospheric humidity and enhanced cycling of carbon through terrestrial ecosystems.
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The Palaeocene/Eocene thermal maximum represents a period of rapid, extreme global warming ∼55 million years ago, superimposed on an already warm world. This warming is associated with a severe
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The late Paleocene thermal maximum (LPTM) is associated with a brief, but intense, interval of global warming and a massive perturbation of the global carbon cycle. We have developed a new orbital
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Dramatic warming and upheaval of the carbon system at the end of the Paleocene Epoch have been linked to massive dissociation of sedimentary methane hydrate. However, testing the Paleocene-Eocene
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TLDR
It is shown that sea surface temperatures near the North Pole increased from ∼18 °C to over 23‬°C during this event, which suggests that higher-than-modern greenhouse gas concentrations must have operated in conjunction with other feedback mechanisms—perhaps polar stratospheric clouds or hurricane-induced ocean mixing—to amplify early Palaeogene polar temperatures.
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