Bo Elberling and co-workers, Institute of Geography, University of Copenhagen are currently studying the environmental impact resulting from oxidizing sulfi dic mine tailings as well as soil organic degradation in the High Arctic. Presently, the focus is on below-zero reaction kinetics, gas trapping in frozen ground, microbial adaption to low temperatures and the role of winter activity in permafrost regions. The Danish Natural Science Research Council funds the project.

In the Ammassalik area in SE Greenland, a project registering temperatures, snow cover and geomorphic activity was terminated in summer 2002. This project was run by Ole Humlum, The University Courses at Svalbard, since 2000, and investigated the possible occurrence of permafrost. Presumably, near sea level, permafrost is absent but present above c. 400-500 m asl. By this, the Ammassalik area represents a region with high permafrost sensitivity towards climate change.

Below the Copenhagen city centre at the Nørreport station permafrost was established artifi cially by the Comet consortium to excavate a link tunnel between different train stations, connecting the new Copenhagen metro with the other trains. The freezing was done to prevent water from entering during the excavation.

Hanne H. Christiansen, Institute of Geography, University of Oslo, Norway has as a guest researcher at the Center for Arctic Technology, ARTEK, Danish Technical University, carried out a cooperation project with Canadian permafrost scientists on the collection of permafrost thermal data from boreholes in Greenland for inclusion in the global terrestrial network on permafrost (GTN-P) (see also the Canadian report).

The Danish National Adhering Body to the IPA, the Danish Society of Arctic Technology, SAT, organised the symposium ‘Identifi cation of permafrost data from Greenland’ 2 May 2002, to obtain more information on existing permafrost data from Greenland. Twenty-four persons participated, many of whom had worked with permafrost in Greenland themselves as engineers earlier on. Also several students, presently working with permafrost conditions in Greenland, attended the symposium.It was decided to collect old and new data from Greenland for the next Circumpolar Active-layer Permafrost System (CAPS) CD-ROM.

Hanne H. Christiansen (