Paleoclimate and ice sheet modelling. Mostly interested in the behaviour of the Greenland and Antarctic ice sheets over geological time scales. These can be caused by changes in insolation (solar irradiance) and greenhouse gas concentrations. For example: the melting of the Greenland ice sheet during the Last Interglacial (130.000-115.000 years ago) and the expansion of the Antarctic ice sheet during the Middle Miocene (about 14 million years ago). Latest research focuses on how the bedrock topography below the ice influences the ice sheet. This is funded through the Research Council of Norway, project called “IceBed”.