University of California, Berkeley, Department of Integrative Biology and Center for Stable Isotope Biogeochemistry, Berkeley, CA 94270, United States
Purdue University, Department of Earth and Atmospheric Sciences and the Purdue Climates Change Research Center, West Lafayette, IN 47907, United States
Queens College, CUNY, School of Earth and Environmental Sciences, NY, NY 11367, United States
University of California, Berkeley, Department of Integrative Biology and Center for Stable Isotope Biogeochemistry, Berkeley, CA 94270, United States
Lawrence Berkeley National Laboratory, Earth Science Division, Berkeley, CA 94720, United States