Dr. D. Warner North is principal scientist of NorthWorks, a consulting firm located in San Francisco, California. Until 2009 he served as a consulting professor in the Department of Management Science and Engineering at Stanford University. Over the past fifty years, Dr. North has carried out applications of decision analysis and risk analysis for electric utilities in the US and Mexico, for the petroleum and chemical industries, and for government agencies with responsibility for energy and environmental protection. Prior to NorthWorks, his employers were SRI International (1967-77) and Decision Focus, Inc. (1977-1998). 

Dr. North has served as a member and consultant to the Science Advisory Board of the US Environmental Protection Agency since 1978, and as a Presidentially appointed member of the US Nuclear Waste Technical Review Board (1989-1994). Dr. North is a co-author of many reports dealing with environmental risk for the National Research Council of the National Academy of Sciences, Engineering, and Medicine (NASEM).

Dr. North is a past president (1991-92) of the international Society for Risk Analysis, a recipient of the Frank P. Ramsey Medal from the Decision Analysis Society in 1997 for lifetime contributions to the field of decision analysis, and the 1999 recipient of the Outstanding Risk Practitioner Award from the Society for Risk Analysis.  Since 2008 he has served as the Area Editor for decision sciences for Risk Analysis, published by the Society for Risk Analysis. 

Dr. North received his Ph.D. in operations research from Stanford University in 1970 and his B.S. in physics from Yale University in 1962.