We thank Robin Webb and the NOAA Paleoclimatology Program for helping motivate this interactive project. We are also grateful to Martin Munro, Richard Holmes, and Caspar Ammann for their technical assistance. This work was supported by the National Science Foundation and NOAA-supported Earth Systems History Program, and the U.S. Department of Energy.
M.E.M. acknowledges partial support through the Alexander Hollaender Distinguished Postdoctoral Research Fellowship Program of the U.S. Department of Energy. This work is a contribution to the NSF and NOAA sponsored Analysis of Rapid and Recent Climatic Change (ARRCC) Project.