Mark Easter, Colorado State University, presented to the committee on carbon sequestration and reducing trace gases in Colorado agriculture (Attachment B). He discussed the Paustian Research Group, which is based at Colorado State University. He reviewed the role of agriculture in climate change. He discussed carbon dioxide, nitrous oxide, and methane. He reviewed aspects of managing the global carbon cycle and the carbon footprint for bread. He stated that tilling soil releases carbon and impacts soil health. He discussed how nitrous oxide is emitted from fertilizers. He discussed methane releases related to food and yard waste in landfills.