onsdag 7 maj 2008

Antarktis uppvärmning överdriven

National Center for Atmospheric Research skriver:

The authors compared recently constructed temperature data sets from Antarctica, based on data from ice cores and ground weather stations, to 20th century simulations from computer models used by scientists to simulate global climate. While the observed Antarctic temperatures rose by about 0.4 degrees Fahrenheit (0.2 degrees Celsius) over the past century, the climate models simulated increases in Antarctic temperatures during the same period of 1.4 degrees F (0.75 degrees C).

"The research clearly shows that you can actually slow down sea-level rise when you increase temperatures over Antarctica because snowfall increases, but warmer temperatures also have the potential to speed up sea-level rise due to enhanced melting along the edges of Antarctica," says Monaghan, who did some of his research at Ohio State University before coming to NCAR.

Sammanfattningsvis verkar det som att de förvånas över att naturen har en tendens att balansera upp saker och ting snarare än tippas över en kant och implodera trots att jorden hittills klarat sig genom miljarder av år med allt vad universum kunnat kasta åt dess håll.

Warren Meyer har gjort en sevärd film om naturens anpassningsförmåga och hur IPCC:s modeller stämmer överens med observationer:

(Direktlänk)

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