1. Department of Earth Sciences University of New Brunswick Fredericton NB Canada
2. Ecosystems and Environment Research Programme (ECRU), and Helsinki Institute of Sustainability Science Helsinki University Helsinki Finland
3. Department of Glaciology and Climate Geological Survey of Denmark and Greenland Copenhagen Denmark
4. Université de BordeauxCNRSEPHEUMR 5805 EPOC Pessac France
5. Department of Geosciences Aarhus University Aarhus Denmark
6. Université LavalCNRSUMI 3376 TAKUVIK Québec QC Canada
7. Station Marine de ConcarneauUMR7159 LOCEAN Concarneau France