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J.R. Petit, J. Jouzel. et. al. Climate and atmospheric history of the past 420 000 years from the Vostok ice core in Antarctica, Nature 399 (3June), pp 429-436, 1999
Uploaded on Tuesday 21 Feb 2012
Temperature and CO2 concentration in the atmosphere over the past 400 000 years
Philippe Rekacewicz, UNEP/GRID-Arendal
Over the last 400,000 years the Earth's climate has been unstable, with very significant temperature changes, going from a warm climate to an ice age in as rapidly as a few decades. These rapid changes suggest that climate may be quite sensitive to internal or external climate forcings and feedbacks. This figures have been derived from the Vostok ice core, taken in Antarctica.