.Dr. John H. Loughrin is a Research Chemist at the USDA-ARS Food Animal Systems Environmental Research Unit in Bowling Green, KY. He specializes in odor analysis and greenhouse gas management. The goal of Dr. Loughrin’s research is to mitigate the environmental damage done to land, water, and air by excessive application of animal manure to farmland. Specific areas of research include improving the efficiency and cost effectiveness of anaerobic digesters to reduce greenhouse gas emissions, provide renewable energy production and reduce manure volume and strength.