Urs Siegenthaler

TL;DR: The recovery of a deep ice core from Dome C, Antarctica, that provides a climate record for the past 740,000 years is reported, suggesting that without human intervention, a climate similar to the present one would extend well into the future.

TL;DR: It is found that atmospheric carbon dioxide is strongly correlated with Antarctic temperature throughout eight glacial cycles but with significantly lower concentrations between 650,000 and 750,000 yr before present, which extends the pre-industrial range of carbon dioxide concentrations during the late Quaternary by about 10 p.p.m.v.

TL;DR: The authors measured δ13C of CO2 separated from air trapped in bubbles in ice samples from an ice core taken at Siple Station in Antarctica, in which it has been possible to demonstrate the atmospheric increase of CO 2 and methane2 with high time resolution.

TL;DR: In this paper, a glacial climate record derived from an ice core from Dronning Maud Land, Antarctica, which represents South Atlantic climate at a resolution comparable with the Greenland ice core records was presented.

TL;DR: The ocean is a significant sink for anthropogenic carbon dioxide, taking up about a third of the emissions arising from fossil fuel use and tropical deforestation as discussed by the authors, but there still appears to be a "missing sink" which may be located in the terrestrial biosphere.