The Atmospheric Constraint: What we Know About the State of the Carbon Cycle by Observing Carbon Dioxide and Methane

A Scott Denning, Colorado State University, Department of Atmospheric Science, Fort Collins, CO, United States, Andrew R Jacobson, University of Colorado at Boulder, CIRES, Boulder, United States, John B Miller, NOAA, Global Monitoring Laboratory, Boulder, United States, Ashley Ballantyne, University of Montana, Missoula, MT, United States, Lori Bruhwiler, NOAA Boulder, Boulder, CO, United States, Abhishek Chatterjee, NASA Goddard Space Flight Center, Global Modeling and Assimilation Office, Greenbelt, United States, Kenneth J Davis, Pennsylvania State University, Department of Meteorology and Atmospheric Science, University Park, United States, Bryan N Duncan, NASA Goddard Space Flight Center, Atmospheric Chemistry and Dynamics Laboratory, Greenbelt, MD, United States, Kevin R Gurney, Arizona State University, School of Life Sciences, Tempe, AZ, United States, Richard A Houghton, Woods Hole Research Center, Falmouth, MA, United States, Gretchen Keppel-Aleks, University of Michigan Ann Arbor, Climate and Space Sciences and Engineering, Ann Arbor, United States, Anna M Michalak, Carnegie Institution for Science Washington, Washington, DC, United States and Lesley Ott, NASA Goddard Space Flight Center, Greenbelt, MD, United States