Andrew Hudson spoke today in Choi Auditorium on global water usage in a talk entitled, "The Global Crisis: Water Supply and Sanitation" Andrew Hudson joined the United Nations Development Program in 1996 as Principal Technical Adviser for the UNDP-GEF International Waters Programme. He is currently Head of the UNDP Water & Ocean Governance Programme in the Environment and Energy Group of UNDP鈥檚 Bureau for Development Policy. Prior to joining UNDP, Mr. Hudson was Executive Director of The Center for Field Research at Earthwatch where he directed the development of Earthwatch鈥檚 annual field research program of 150 projects and over $3 million in grants. He also taught at the university and secondary school levels and was active in oceanographic research in the 1970s and 1980s in areas such as hydrothermal vent geochemistry, sedimentary diagenesis, hydrography and air-sea exchange.