Nick Pester is an aqueous geochemist and oceanographer with specific expertise in fluid-mineral exchange reactions and chemical mass transport in natural hydrothermal systems. He received a Ph.D. in Geology/Chemistry from the University of Minnesota, where his research focused on discerning the physical and geochemical variables that control the chemistry of deep-sea hydrothermal fluids. He followed this with post-doctoral work in energy geosciences at the Lawrence Berkeley National Laboratory, concentrating on geochemical aspects of carbon sequestration and geothermal reservoir management. He is currently a research scientist in the Department of Earth and Planetary Science at UC Berkeley. As an LBNL affiliate, he manages the hydrothermal laboratory, conducting experiments with broad implications for modeling chemical/isotope exchange reactions between fluids, minerals and gases in the Earth’s crust.