Saturday, July 04, 2009

Climate fight

There's a fight going on between a couple of blogs, Real Climate and Climate Science. In the current salvo, we have Real Climate's Misinformation:

More importantly, however, the author of the weblog makes the statement that the following climate metrics “are progressing faster than was expected a few years ago” ;

1. “rising sea levels”

NOT TRUE; e.g. see the University of Colorado at Boulder Sea Level Change analysis.

Sea level has actually flattened since 2006.

2. “the increase of heat stored in the ocean”


Update On A Comparison Of Upper Ocean Heat Content Changes With The GISS Model Predictions.

Their has been no statistically significant warming of the upper ocean since 2003.

3. “shrinking Arctic sea ice”

NOT TRUE; see the Northern Hemisphere Sea Ice Anomaly from the University of Illinois Cyrosphere Today website. Since 2008, the anomalies have actually decreased.

These climate metrics might again start following the predictions of the models. However, until and unless they do, the authors of the Copenhagen Congress Synthesis Report and the author of the Real Climate weblog are erroneously communicating the reality of the how the climate system is actually behaving.

Real Climate, in turn, responds that the cessations are too short in duration to be taken as a real change in the trend – a "one swallow does not make a summer" argument.

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