He has become an expert on research and application of greenhouse gas inventory methods. He serves as lead compiler for the US national inventory for soil carbon and nitrous oxide emissions from agricultural lands, in addition to the US national representation of land. These inventory products are used for reporting by the US government to the United Nations Framework Convention on Climate Change (UNFCCC). He has been a lead author on syntheses and reports prepared by the Intergovernmental Panel on Climate Change (2006 National Greenhouse Gas Inventory Guidelines and Fourth Assessment Report on Climate Change), and a past member of the scientific steering group for the North American Carbon Program. He also conducts research collaboratively with economists and sociologists to better understand the drivers of land use and management decisions, and predict the likelihood of greenhouse gas mitigation in the future through adoption of conservation practices and bioenergy production in agricultural lands. Dr. Ogle has participated in international capacity-building projects to improve greenhouse gas inventory compilation in Central America, Southeast Asia, and East and Southern African Countries, providing training and tools on greenhouse gas inventory methods for the AFOLU sector. He has given numerous invited and keynote presentations at meetings for a variety of societies and organizations, such as American Geophysical Union, China Association for Science and Technology, CarboEurope-GHG Program, European Geosciences Union, Subsidiary Body for Scientific and Technological Advice (SBSTA) to the UNFCCC, Swedish University of Agricultural Sciences, and US Forest Service.