Comments on: Summary of von Storch Talk http://cstpr.colorado.edu/prometheus/?p=3526 Wed, 29 Jul 2009 22:36:51 -0600 http://wordpress.org/?v=2.9.1 hourly 1 By: Bernd Stroeher http://cstpr.colorado.edu/prometheus/?p=3526&cpage=1#comment-1343 Bernd Stroeher Tue, 12 Jul 2005 13:43:50 +0000 http://sciencepolicy.colorado.edu/prometheusreborn/?p=3526#comment-1343 The three authors wrote : „Dr. von Storch emphasized that his work represents a critique of Mann’s methods, not of his results.“ Wow ! Has Von Storch changed his mine, or is this wishful thinking of Erika Engelhaupt, Nat Logar, and Marilyn Averill ? We in Germany have other informations. Remember the Spiegel interview as follows: Der Spiegel No 41-2004 page 158, October 4, 2004 Climate: The graph is non-sense The German climate researcher Hans von Storch comments on the dispute between scientist concerning the temperature curve of the last thousand years and the greenhouse effect. Spiegel : You claim that the reconstruction of past temperatures by the US researcher Michael Mann is wrong. What gives you this idea? Storch: The Mann graph indicates that it was never warmer during the last ten thousand years than it is today. In a near perfect slope the curve declines from the Middle Ages up to 1800, only to shoot up sharply with the beginning of fossil burning. Mann calculations rest, inter alia, on analyses of tree rings and corals. We were able to show in a publication in ‘Science’ that this graph contains assumptions that are not permissible. Methodologically it is wrong: rubbish. Spiegel: How did climate change instead? Storch: According to our computer model temperatures fluctuation were significantly larger and took place faster. The temperatures were 900 years ago also once approximately as warm as today. On the other hand, between 1400 and 1800 we have essentially lower readings than Mann. Spiegel : Are you therefore claiming that the greenhouse effect does not exist? Storch: Definitely not. Our data show a distinct warming trend during the last 150 years. Yet it remains important for science to point out the erroneous nature of the Mann curve. In recent years it has been elevated to the status truth by the UN appointed science body, the Intergovernmental Panel on Climate Change (IPCC).This handicapped all that research which strives to make a realistic distinction between human influences on climate and natural variability. Spiegel: New curves have been around for some time. Why were Mann’s critics unable to get a hearing? Storch: His influence in the community of climate researchers is great. And Mann rejects any reproach most forcefully. His defensiveness is understandable. Nobody likes to see his own child die. But we must respect our credibility as research scientists. Otherwise we play into the hands of those sceptics of global climate change who imagine a conspiracy between science and politics. The three authors wrote :

„Dr. von Storch emphasized that his work represents a critique of Mann’s methods, not of his results.“

Wow !

Has Von Storch changed his mine, or is this wishful thinking of Erika Engelhaupt, Nat Logar, and Marilyn Averill ?

We in Germany have other informations.

Remember the Spiegel interview as follows:

Der Spiegel No 41-2004 page 158, October 4, 2004

Climate: The graph is non-sense

The German climate researcher Hans von Storch comments on the dispute
between scientist concerning the temperature curve of the last thousand
years and the greenhouse effect.

Spiegel :

You claim that the reconstruction of past temperatures by the US researcher
Michael Mann is wrong. What gives you this idea?

Storch:

The Mann graph indicates that it was never warmer during the last ten
thousand years than it is today. In a near perfect slope the curve declines
from the Middle Ages up to 1800, only to shoot up sharply with the beginning
of fossil burning. Mann calculations rest, inter alia, on analyses of tree
rings and corals. We were able to show in a publication in ‘Science’ that this graph contains assumptions that are not permissible.

Methodologically it is wrong: rubbish.

Spiegel:

How did climate change instead?

Storch:

According to our computer model temperatures fluctuation were significantly larger and took place faster. The temperatures were 900 years ago also once approximately as warm as today. On the other hand, between 1400 and 1800 we have essentially lower readings than Mann.

Spiegel :

Are you therefore claiming that the greenhouse effect does not exist?

Storch:

Definitely not. Our data show a distinct warming trend during the last 150
years. Yet it remains important for science to point out the erroneous
nature of the Mann curve. In recent years it has been elevated to the status
truth by the UN appointed science body, the Intergovernmental Panel on
Climate Change (IPCC).This handicapped all that research which strives to
make a realistic distinction between human influences on climate and natural
variability.

Spiegel:

New curves have been around for some time. Why were Mann’s critics unable to
get a hearing?

Storch:

His influence in the community of climate researchers is great. And Mann
rejects any reproach most forcefully. His defensiveness is understandable.
Nobody likes to see his own child die. But we must respect our credibility
as research scientists. Otherwise we play into the hands of those sceptics
of global climate change who imagine a conspiracy between science and
politics.

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