Katherine Anderson¹, Erich C Osterberg¹, Dominic Winski¹, Karl J Kreutz^2,3, Jihong Cole-Dai⁴, David G Ferris¹, Zayta Renay Thundercloud¹, Aaron Chesler^2,3, Eric J. Steig⁵, Edward Brook⁶, Christo Buizert⁶, Bradley R Markle⁷, Shaun A Marcott⁸ and Bess G Koffman⁹, (1)Dartmouth College, Department of Earth Sciences, Hanover, NH, United States, (2)University of Maine, School of Earth and Climate Sciences, Orono, ME, United States, (3)University of Maine, Climate Change Institute, Orono, ME, United States, (4)South Dakota State University, Department of Chemistry and Biochemistry, Brookings, SD, United States, (5)University of Washington, Seattle, WA, United States, (6)Oregon State University, College of Earth, Ocean, and Atmospheric Sciences, Corvallis, OR, United States, (7)California Institute of Technology, Pasadena, CA, United States, (8)University of Wisconsin-Madison, Department of Geoscience, Madison, WI, United States, (9)Colby College, Department of Geology, Waterville, ME, United States