Jack G. Calvert, Emeriturs Senior Scientist at National Center for Atmospheric ReseachRichard G. Derwent, Independent consultant, OBE, past scientist with UK Meterological OfficeJohn J. Orlando, Scientist III at National Center for Atmospheric ResearchGeoffrey S. Tyndall, NCAR, Leader of Laboratory Kinetics GroupTimothy J. Wallington, Technical Leader in Physical and Environmental Sciences at Ford Motor Company