New interpretation of Antarctic ice cores: Prevailing theory on climate history expanded
Wednesday, March 2, 2011 - 14:30
in Earth & Climate
Climate researchers have expanded a prevalent theory regarding the development of ice ages. Physicists have completed new calculations on the connection between natural insulation and long-term changes in global climate activity. Up to now the presumption was that temperature fluctuations in Antarctica, which have been reconstructed for the last million years on the basis of ice cores, were triggered by the global effect of climate changes in the northern hemisphere. The new study shows, however, that major portions of the temperature fluctuations can be explained equally well by local climate changes in the southern hemisphere.