Dr. Heber has 47 years of experience in livestock facility research, education, and/or consulting including 9 years at Kansas State University and 28 years at Purdue University. He taught the principles of environmental design and control of livestock buildings both in engineering and agricultural classrooms, as an extension specialist to various producer groups, and as an expert witness in litigation. He has conducted research on assessment, mitigation, and dispersion modeling of particulate matter, pathogens, odor and gas emissions from livestock facilities, manure additive testing, odor setbacks, biofiltration, odor measurement protocols, greenhouse gas emissions from dairy farms, odor emission from swine, dairy and layer housing, outdoor manure treatment, manure land application, and industrial composting. Dr. Heber directed several comprehensive emission measurement campaigns in collaboration with 12 other universities and cooperation of milk, pork, poultry and egg producers, including the benchmark National Air Emissions Monitoring Study. Dr. Heber has published 119 scientific journal articles.