Rachel Licker, Union of Concerned Scientists Washington DC, Washington, DC, United States, Brenda Ekwurzel, Union of Concerned Scientists, Washington, DC, United States, Scott Doney, University of Virginia, Department of Environmental Sciences, Charlottesville, VA, United States, Sarah R Cooley, Ocean Conservancy Inc., Washington, DC, United States, Ivan D Lima, Woods Hole Oceanographic Inst, Woods Hole, MA, United States, Richard Heede, Climate Mitigation Partners, Snowmass, CO, United States and Peter C Frumhoff, Union of Concerned Scientists, Cambridge, MA, United States