Master of Science, Uppsala University, 1959. Doctor of Philosophy, Stockholm University, 1964.
His research interests include climate sensitivity, extreme events, climate variability and climate predictability. He was Head of Research at the European Centre for Medium-Range Weather Forecasts from 1975 to 1981 and then Director until 1990. Then director of the Max Planck Institute for Meteorology in Hamburg.
He is now a Senior Research Fellow at the Environmental Systems Science Centre in the University of Reading.
In 2005 he was awarded the René Descartes Prize for Collaborative Research together with Professor Ola M. Johannessen and Doctor Leonid Bobylev from the Nansen Environmental and Remote Sensing Centre in Norway and Russia for the Climate and Environmental Change in the Arctic project
In 2006 he was awarded the 51st International Meteorological Organization Prize of the World Meteorological Organization for pioneering research in numerical weather prediction. A draft paper discussing issues of climate sensitivity and uncertainties in the IPCC Fourth and Fifth Assessment Reports in relation to a recent paper by Otto et al.
Following this, Bengtsson and his co-authors then requested the journal to publish it as a shorter "Perspective" article, but in early April the journal"s editorial board turned this request down, adding that the paper contained errors and exceeded the normal size limit for "Perspective" pieces.
They suggested that the errors should be corrected and a full length paper resubmitted with a new analysis of the data. The journal said they reject 65-70 percent of papers submitted. As its lead story on 16 May 2014, The Times said that the paper Bengtsson had submitted to in February had been rejected for what Bengtsson called "activist" reasons.
The publishers, the Institute of Physics, stated that the paper "which was the subject of this morning"s front page story of The Times, contained errors, in our view did not provide a significant advancement in the field, and therefore could not be published in the journal." They said that "The comments taken from the referee reports were taken out of context and therefore, in the interests of transparency, we have worked with the reviewers to make the full reports available", and put online the referee reports from mid March when the paper had been rejected.
Later that day, Bengtsson issued a statement that "I do not believe there is any systematic "cover-up" of scientific evidence on climate change or that academics" work is being "deliberately suppressed", as the Times front page suggests. On 30 April 2014, Bengtsson joined the, a climate change skeptics organization.
On 14 May Bengtsson reversed this decision. In a press release published by the GWPF, he cited "an enormous group pressure" and said that "I see no limit and end to what will happen.
lieutenant is a situation that reminds me about the time of McCarthy.
I would never have expecting anything similar in such an original peaceful community as meteorology. Apparently it has been transformed in recent years." and " I had not expecting such an enormous world-wide pressure put at me from a community that I have been close to all my active life". Two days later The Times reported that "Scientists from around the world sent messages of support to Professor Bengtsson".
I am worried by a wider trend that science is gradually being influenced by political views".
Member Academy Europea, Swedish Academy of Sciences, New York Academy of Sciences, Nordrhein Westfalischer Academy of Sciences, Society German Natural Scientists Physicians.
Married Karin Agneta Forsling, August 20, 1960. Children: Anna, Tor, Olof.