Yes I heard about this reversal.
Is Lomborg a renowed physics scientist?
I thought he's a political "scientist" and statistics expert.
Lomborg spent a year as an undergraduate at the University of Georgia, earned an M.A. degree in political science at the University of Aarhus in 1991, and a Ph.D. degree in political science at the University of Copenhagen in 1994.
He lectured in statistics in the Department of Political Science at the University of Aarhus as an assistant professor (1994–1996) and associate professor (1997–2005). He left the university in February 2005 and in May of that year became an Adjunct Professor at Copenhagen Business School.
Early in his career his professional areas of interest lay in the simulation of strategies in collective action dilemmas, simulation of party behavior in proportional voting systems, and the use of surveys in public administration. In 1996, Lomborg's paper, "Nucleus and Shield: Evolution of Social Structure in the Iterated Prisoner's Dilemma", was published in the academic journal, American Sociological Review.
Later Lomborg's interests shifted to the use of statistics in the environmental arena. His most famous book in this area is The Skeptical Environmentalist, whose English translation was published as a work in environmental economics by Cambridge University Press in 2001. He later edited Global Crises, Global Solutions, which presented the first conclusions of the Copenhagen Consensus, published in 2004 by the Cambridge University Press. In 2007, he authored a book entitled Cool It: The Skeptical Environmentalist's Guide to Global Warming.