A new estimate of climate sensitivity using Last Glacial Maximum model-data constraints that includes parametric, feedback, and proxy uncertainties

David J Ullman, Northland College, Ashland, WI, United States, Andreas Schmittner, Oregon State University, College of Earth, Ocean, and Atmospheric Sciences, Corvallis, United States and Nathan M Urban, Los Alamos National Laboratory, Los Alamos, NM, United States