Op nieuwsberichten alleen ga ik niet af, ik wil weten wat de bron er achter precies meldt. 
Bron: http://www.sciencemag.org/cgi/content/abstract/311/5769/1914 Quote selectie
Science 31 March 2006:
Vol. 311. no. 5769, pp. 1914 - 1917
DOI: 10.1126/science.1121652
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Reports
Significant Warming of the Antarctic Winter Troposphere
J. Turner,* T. A. Lachlan-Cope, S. Colwell, G. J. Marshall, W. M. Connolley
We report an undocumented major warming of the Antarctic winter troposphere that is larger than any previously identified regional tropospheric warming on Earth. This result has come to light through an analysis of recently digitized and rigorously quality controlled Antarctic radiosonde observations. The data show that regional midtropospheric temperatures have increased at a statistically significant rate of 0.5° to 0.7°Celsius per decade over the past 30 years. Analysis of the time series of radiosonde temperatures indicates that the data are temporally homogeneous. The available data do not allow us to unambiguously assign a cause to the tropospheric warming at this stage.
British Antarctic Survey, Natural Environment Research Council, Cambridge CB3 0ET, UK.
Bron: http://www.sciencemag.org/cgi/content/abstract/311/5769/1914 Quote selectie
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