Ice core measurements have revealed a highly asymmetric cycle in Antarctic temperature
and atmospheric CO2 over the last 800 kyr. Both CO2 and temperature decrease over 100 …

The aim of this paper is to explain observed correlations between temperature and carbon
dioxide concentrations in Antarctic ices. Chemical characteristics of the carbonate system …

Termination of the Marinoan global glaciation (650–635 million years ago, Ma) was
immediately followed by the diversification of eukaryotes and possible occurrence of …

Historical observations of the concentration of calcium carbonate in global deep sea
sediments are compiled and compared with a new gridded field of seawater CO3 …

The atmospheric concentration of CO2 has undergone significant and fairly regular changes
on a time scale of 100 kyr during the at least last four glacial‐interglacial cycles. Here we …

An urgent question for future climate, in light of increased burning of fossil fuels, is the
temperature sensitivity of the climate system to atmospheric carbon dioxide (pCO> sub> 2) …

The Snowball Earth theory initially proposed by Kirschvink (1992) to explain the
Neoproterozoic glacial episodes, suggested that the Earth was fully ice-covered at 720 Ma …

Sea ice formation drives salt from the surface to the deep sea. In so doing it lowers the
salinity of polar surface waters. We show here that this reduction in turn lowers the CO2 …

Ice sheet models suggest that once formed, the large, high-altitude East Antarctic Ice Sheet
was relatively self-stabilizing, due to its cold upper surface. The ice sheet hysteresis problem …

The Early Palaeozoic Icehouse (Late Ordovician-Early Silurian, c. 455–425 Ma) was a
remarkable event in the Earth's climatic history, marked by extensive glaciations occurring at …