Dr. Ogle is a leader in research dealing with assessments of land use and management impacts on biogeochemical processes. Currently, he is the lead compiler on the U.S. national assessment of agricultural land use and management impacts on greenhouse gas emissions of CO2 and N2O, which is used for reporting to the United Nations Framework Convention on Climate Change (UNFCCC). Dr. Ogle has worked on international syntheses and reports through the Intergovernmental Panel on Climate Change (IPCC), including the 2006 National Greenhouse Gas Inventory Guidelines and Fourth Assessment Report on Climate Change(Mitigation).