1. Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research Potsdam Germany
2. Geography Department Humboldt‐Universität zu Berlin Berlin Germany
3. Institute of Environmental Science and Geography University of Potsdam Potsdam Germany
4. Institute of Biochemistry and Biology University of Potsdam Potsdam Germany
5. Institute of Natural Sciences North‐Eastern Federal University in Yakutsk Yakutsk Russia
6. Department of Geosciences University of Oslo Oslo Norway
7. Centre for Biogeochemistry in the Anthropocene University of Oslo Oslo Norway