Dr. David Tsao is the deputy manager and HSSE coordinator for the Remediation Engineering & Technology group in BP's Remediation Management function at their office in Warrenville, IL. He is a three-time chemical engineering graduate of Purdue University (B.S., 1988, M.S., 1990, Ph.D., 1997) where his areas of research included plant biotechnology, pharmaceutical production, plant nutrition, and plant biomass production for space (NASA) applications. Upon graduation, David came to work for Amoco in the Environmental Technology Assessment and Development group where he specialized in the areas of phytotechnologies and the remediation of gasoline oxygenates. Currently, David is responsible for a team of remediation scientists and engineers coordinating, developing, and implementing the technical aspects of all clean up strategies in the Americas. He is also personally active in wetland technologies, landfarming, composting, native prairie restorations, ecosystem developments, biodiversity, and greenhouse gas emissions reduction. Furthermore, David actively participates in the development of these natural clean up technologies, establishes regulatory guidance on their use, and teaches phytotechnologies through the US EPA, Interstate Technology and Regulatory Council, and the Wildlife Habitat Council.