Jeffrey Westrop¹, Pooja Yadav², Karrie A Weber³, John Bargar⁴, Vincent Noel⁴, Arjen van Veelen⁵, Xiaoqin Wu⁶ and Romy Chakraborty⁷, (1)University of Nebraska Lincoln, Lincoln, NE, United States, (2)University of Nebraska-Lincoln, Biological Sciences, Lincoln, NE, United States, (3)University of Nebraska-Lincoln, School of Biological Sciences, Lincoln, NE, United States, (4)SLAC National Accelerator Laboratory, Stanford Synchrotron Radiation Lightsource, Menlo Park, CA, United States, (5)University of Southampton, Southampton, United Kingdom, (6)Lawrence Berkeley National Laboratory, Berkeley, CA, United States, (7)Lawrence Berkeley Nat'l Lab, Berkeley, CA, United States

Melanie A Mayes, ORNL, Oak Ridge, TN, United States; Oak Ridge National Laboratory, Climate Change Science Institute and Environmental Sciences Division, Oak Ridge, TN, United States, Debjani Sihi, Oak Ridge National Laboratory, Oak Ridge, TN, United States, Xiaofeng Xu, San Diego State University, Department of Biology, San Diego, CA, United States, Monica Salazar Ortiz, University of Hamburg, Hamburg, Germany, Christine O'Connell, Macalester College, St Paul, MN, United States, Whendee L Silver, University of California Berkeley, Department of Environmental Science, Policy, and Management, Berkeley, CA, United States and Carla López-Lloreda, Trujillo Alto, PR, UNITED STATES

Debjani Sihi¹, Eric A Davidson², Kathleen E Savage³ and Jacob Hagedorn², (1)Emory University, Department of Environmental Sciences, Atlanta, GA, United States, (2)University of Maryland Center for Environmental Science Appalachian Laboratory, Frostburg, MD, United States, (3)Woods Hole Research Center, Falmouth, MA, United States

Emily M M Lacroix¹, Janica M Mendillo², Cole M Shepherd², Robert Rossi¹ and Scott E Fendorf¹, (1)Stanford University, Department of Earth System Science, Stanford, CA, United States, (2)Stanford University, Stanford, United States

Amrita Bhattacharyya¹, Ravi K Kukkadapu², Ashley Campbell³, Yang Lin⁴, Mark E Bowden⁵, Whendee L Silver⁶, Peter S Nico⁷ and Jennifer Pett-Ridge³, (1)Lawrence Berkeley National Laboratory, Earth and Environmental Sciences Area, Berkeley, CA, United States, (2)Pacific Northwest National Lab, Richland, WA, United States, (3)Lawrence Livermore National Laboratory, Livermore, CA, United States, (4)University of Florida, Soil and Water Sciences Department, Gainesville, FL, United States, (5)Pacific Northwest National Laboratory, William R. Wiley Environmental and Molecular Sciences Laboratory, Richland, WA, United States, (6)University of California Berkeley, Department of Environmental Science, Policy, and Management, Berkeley, CA, United States, (7)Lawrence Berkeley National Lab, Berkeley, CA, United States

Carolyn Anderson¹, Christian Dewey², Malak M Tfaily³, Ravi K Kukkadapu⁴, Kew William⁵, Peter S Nico⁶, Patricia M Fox⁶, Scott E Fendorf² and Marco Keiluweit¹, (1)University of Massachusetts Amherst, Amherst, MA, United States, (2)Stanford University, Department of Earth System Science, Stanford, CA, United States, (3)University of Arizona, Tucson, AZ, United States, (4)Pacific Northwest National Lab, Richland, WA, United States, (5)Pacific Northwest National Laboratory, Environmental Molecular Sciences Laboratory, Richland, United States, (6)Lawrence Berkeley National Lab, Berkeley, CA, United States

Chelsea Duball, University of Wyoming, Laramie, WY, United States and Karen L. Vaughan, University of Wyoming, Ecosystem Science and Management, Laramie, WY, United States