Constraints on the Late Holocene Anthropogenic Contribution to the Atmospheric Methane Budget   Publication Date:   2013-11-22 Creator:   Logan Mitchell Ed Brook James E. Lee Christo Buizert Todd Sowers Publisher.Display:   American Association for the Advancement of Science Subjects.Display:   Climate change methane atmospheric methane Source Institution:   Florida International University Constraints on the Late Holocene Anthropogenic Contribution to the Atmospheric Methane Budget