Education
1999 Doctor of Philosophy in Geography at the University of Bonn.
1999 Doctor of Philosophy in Geography at the University of Bonn.
His research interests are Global Climate Change, Palaeoclimatology and Vegetation Dynamics. His research has been part of the Hockey stick controversy with his temperature reconstructions, that have been cited as being evidence for both sides of the controversy. 1995 Diplom in Geography at University of Bonn 2000 Postdoc at Columbia University 2001 Research scientist at Eidgenössische Technische Hochschule , Birmensdorf 2005 Habilitation at the University of Bern 2006 Head Dendro Sciences Division, Forest, Snow and Landscape (Wald Schnee und Landschaft) Esper, January