David J Farnham¹, Steven J Davis², Nate Lewis³, Tyler Ruggles¹ and Ken Caldeira¹, (1)Carnegie Institution for Science Stanford, Dept. of Global Ecology, Stanford, CA, United States, (2)University of California Irvine, Earth System Science, Irvine, CA, United States, (3)California Institute of Technology, Division of Chemistry and Chemical Engineering, Pasadena, CA, United States