1. School of Earth and Climate Sciences, University of Maine, Orono, Maine, USA;
2. Department of Civil and Environmental Engineering, University of Maine, Orono, Maine, USA;
3. Department of Environmental Protection, Augusta, Maine, USA;
4. Program in Environmental Studies, Bates College, Lewiston, Maine, USA;
5. Czech Geological Survey, Prague, Czech Republic;
6. Climate Change Institute, University of Maine, Orono, Maine, USA;
7. Department of Geology, Bates College, Lewiston, Maine, USA;
8. Department of Natural Sciences, Paul Smith’s College, Paul Smiths, New York, USA