Centre for Ice and Climate is a leading international group in ice core related research, pioneering novel measurements and ice flow models and leading international ice core drilling projects, especially on the Greenland ice sheet. It is a research group under the section Physics of Ice, Climate and Earth at the Niels Bohr Institute. The research group is umbrella for the water isotope group, the greenhouse gas group, the impurity group, the dating group and the ice modelling group.