This is a summary document for the report Carbon Science for Carbon Markets: Emerging Opportunities for Iowa (CROP 3175) . Researchers at Iowa State University (ISU) were asked by the Iowa Economic Development Authority (IEDA) to undertake an assessment of the science supporting agriculturally based carbon markets. This report includes the work of 51 faculty members, staff, postdoctoral associates, and graduate student scholars associated with four colleges, four institutes and centers, and 13 departments throughout ISU.