Geeta Persad, Carnegie Institution for Science Stanford, Stanford, CA, United States, Yi Ming, NOAA Geophysical Fluid Dynamics Laboratory, Princeton, NJ, United States, Ken Caldeira, Carnegie Institution for Science Stanford, Dept. of Global Ecology, Stanford, CA, United States, Zhaoyi Shen, Princeton University, Princeton, NJ, United States and V Ramaswamy, NOAA/OAR/ GFDL, Princeton, NJ, United States