Vibjörn (Wibjörn) Karlén (born 26 August 1937 in Kristine, Kopparberg County, Sweden; died 22 October 2021) was a Swedish geologist who was professor emeritus of physical geography and quaternary geology at Stockholm University.
In an article which describes Karlén as a paleoclimatologist, he is quoted as saying: "One of the big problems with trying to determine long-term temperature changes, is that weather records only go back to about 1860.
"[2] Karlén has also criticized the mainstream media for "spreading the exaggerated views of a human impact on climate.
"[3] He was also named in a 2007 minority report of the U.S. Senate Environment and Public Works Committee as one of 400 "prominent scientists" who were said to dispute global warming.
Karlén was a member of the Royal Swedish Academy of Sciences[6][5] and editor-in-chief of the journal Geografiska Annaler Series A, Physical Geography from 2004 to 2010.