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Comment on an interview with professor Fritz Vahrenholt (European Energy Review, May 2)

R van Dorland, B Verheggen

Sorry – the claim that climate science is radically wrong would require extraordinary evidence

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). 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.

Bibliografische gegevens

R van Dorland, B Verheggen. Comment on an interview with professor Fritz Vahrenholt (European Energy Review, May 2)
published, European Energy Review, 2012

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