This position paper reports the outcome of discussions of an IPA planning meeting held at Stockholm University on March 3-4, 2005. The meeting was attended by Jerry Brown, Patrick Crill, Sergey Goryachkin, Peter Kuhry, Galina Mazhitova, Eva-Maria Pfeiffer and Charles Tarnocai, with further input from Jan Boelhouwers and Torben Christensen. We propose a new IPA project under the title 'Carbon Pools in Permafrost Regions', in short the IPA CAPP project.