1. Natural Sciences, Paul Smith’s College, Paul Smiths, NY 12970, USA.
2. Climate Change Institute, University of Maine, Orono, ME 04469, USA.
3. Centre for Hydrological and Ecosystem Science, Department of Geography, Loughborough University, Loughborough, LE11 3TU, UK.
4. Institut des Sciences de l’Evolution de Montpellier, UMR 5554 Université Montpellier 2, Bâtiment 22, CC061, Place Eugène Bataillon 34095 Montpellier CEDEX 5, France.
5. Department of Archaeology, History, Cultural Studies and Religion, University of Bergen, 5020 Bergen, Norway.
6. Geophysical Institute, University of Bergen, Allégaten 70, 5007 Bergen, Norway.
7. Bjerknes Centre for Climate Research, Allégaten 55, 5007 Bergen, Norway.
8. European Commission, Joint Research Centre, Institute for Environment and Sustainability, Climate Change Unit, Ispra, Italy.