Pollen reconstructions, tree-rings and early climate data from Minnesota, USA: a cautionary tale of bias and signal attentuation

Jeannine-Marie St-Jacques1,2, Brian F Cumming3, John P. Smol3 and David Sauchyn4, (1)Concordia University, Geography, Planning and Environment, Montreal, QC, Canada, (2)Concordia University, Montreal, QC, Canada, (3)Queen's University, Kingston, ON, Canada, (4)University of Regina, Prairie Adaptation Research Collaborative (PARC), Regina, SK, Canada