Re: [asa] The Chilling Stars A new theory of climate change (Book Review)

From: PvM <>
Date: Sun May 20 2007 - 17:45:13 EDT

For those interested in a scientific perspective on Svensmark's
claims, and especially the lack of evidence supporting their claims do
a google search for:

Pattern of Strange Errors Plagues Solarand Terrestrial Climate Data by
Damon and Laut

A good start indeed to explore issues St Augustine warned us for

Or the Nature article

<quote>This cosmic-ray connection drew a lot of media attention for
several years, but never found favour with the mainstream of climate
science, which holds that the twentieth century's global warming was
caused by people, not particles. To many in the community, the
attention paid to Svensmark and Friis-Christensen seemed to be at best
a diversion, at worst a counter-attack. The connection with the Sun
was played on by organizations with connections to oil companies, such
as the right-wing George C. Marshall Institute in Washington DC.

There were also questions about Svensmark's use of data. In a 2004
article published in Eos, Paul Damon of the University of Arizona in
Tucson and Peter Laut of the Technical University of Denmark discussed
several examples of what they called "unacceptable handling of
observational data" by Svensmark and Friis-Christensen which
exaggerated the correlation7.

Among several flaws, including arithmetical errors, they noted that
the cloud data that had been used originally did not represent total
global cloud cover, and that when the correct data were used the
correlation broke down. Svensmark began to use a different measure of
cloudiness, justifying this by arguing that the new measure made more
sense than the original one as something that the cosmic rays might be

Jeff Kanipe, Climate change: A cosmic connection, Nature 443, 141-143
(14 September 2006) | doi:10.1038/443141a; Published online 13
September 2006

More from Laut at "Comments by Peter Laut on Henrik Svensmark's
"Comments on Peter Laut's paper: 'Solar Activity and Terrestrial
Climate: an Analysis of Some Purported Correlations'. Journal of
Atmospheric and Solar-Terrestrial Physics 65(2003) 401-812".

At best Svenmark's ideas are interesting but hardly supported by much
science. We shall see if the CLOUD project can provide support for
their claims as well as for the extent and importance.

Reaclimate chimes in with
Recent Warming But No Trend in Galactic Cosmic Rays

And last but not least Wikipedia

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Received on Sun May 20 17:45:37 2007

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