Contributions to Pliocene Arctic warmth from removal of anthropogenic aerosol and enhanced forest fire emissions

Ran Feng, National Center for Atmospheric Research, Boulder, CO, United States, Bette L Otto-Bliesner, NSF National Center for Atmospheric Research, Boulder, United States, Tamara Fletcher, Institute of Applied Ecology, Chinese Academy of Sciences, Missoula, MT, United States, Ashley Ballantyne, University of Montana, Missoula, MT, United States and Esther C Brady, National Center for Atmospheric Research, Climate and Global Dynamics Laboratory, Boulder, United States