Posts Tagged ‘RWE’

Response to Fritz Vahrenholt and Sebastian Lüning

June 11, 2012

Extraordinary claims require extraordinary evidence

In their reply to our criticisms, Prof Fritz Vahrenholt and Dr Sebastian Lüning exhibit a misunderstanding of various key aspects of climate science. Their claim, that mainstream science is radically wrong, is unfounded and not backed up by sufficiently strong evidence. In our response published at EER, we only focused on a few selected issues of contention. Here we reply to all of Vahrenholt’s and Lüning’s arguments and allegations.

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Comment on EER interview with Fritz Vahrenholt

June 11, 2012

Also published in European Energy Review (EER).

Greenhouse gases are responsible for warming, not the sun

Scientists working on climate on a daily basis must have been rather astonished by the interview with Professor Fritz Vahrenholt (European Energy Review, May 2, free registration required). Vahrenholt, chief of RWE Innogy, self-proclaimed climate expert and author of the book Die Kalte Sonne (The Cold Sun), claims that “the contribution of CO2 to global warming is being exaggerated”. These claims, however, do not stand up to scientific scrutiny. We assess his ideas in the light of the scientific literature on the role of the sun versus other climate forcing factors. The dominant influence of greenhouse gases follows not only from their basic physical properties, but also from their “fingerprint” in the observed warming. The sun, in contrast, has not exhibited any warming trend over the past 50 years. The sun is thus not responsible for the warming seen during this period. Greenhouse gases in all likelihood are.

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