1. A Coupled Atmosphere-Ecosystem Model of the Early Archean Biosphere Open Access Author: Kharecha, Pushker A Title: A Coupled Atmosphere-Ecosystem Model of the Early Archean Biosphere Graduate Program: Geosciences Keywords: Archeanmethaneearly Earthatmospheric evolutionanaerobic ecosystem File: Download Thesis.pdf Committee Members: James Kasting, Committee Chair/Co-ChairLee Kump, Committee MemberChristopher Howard House, Committee MemberS Blair Hedges, Committee Member