1. Department of Geosciences, University of Massachusetts Amherst, Amherst, Massachusetts, USA
2. Climate System Research Center, University of Massachusetts Amherst, Amherst, Massachusetts, USA
3. Department of Geology, Bates College, Lewiston, Maine, USA
4. Department of Arctic Geology, University Centre in Svalbard, Longyearbyen, Norway
5. Nordvulk, Nordic Volcanological Center, University of Iceland, Reykjavík, Iceland
6. Globe Institute, University of Copenhagen, Copenhagen, Denmark
7. Department of Earth Science, University of Bergen, Bergen, Norway
8. COWI, Bergen, Norway