Unprecedented temperature extremes
Study of paleoclimate records indicates that high northern latitudes are experiencing unprecedented extreme temperatures not seen in the past 600 years.
Earth's history
Support for Ice Age CO2 changes
At the end of the last ice age, changes in ocean circulation patterns led to increased atmospheric CO2 levels. In this article, analysis of opal deposition supports the hypothesis that the release of CO2 was a result of the reduction of the glacial north atlantic intermediate water causing antarctic overturning, rather than the alternative hypothesis that westerly wind-induced effects were the driver of CO2 release.
Argon dating determines time scale of Cretaceous mass extinction
High-precision argon dating was used to analyze tektites and bentonites derived from a bolide impact associated with the mass extinction event at the boundary of the Cretaceous and Paleogene periods.
A Long View on Climate Sensitivity
Past climate change can help us predict how anthropogenic effects will alter future climate patterns.
