Research interests: paleoceanography, paleoclimatology, biogeochemical cycles, climate change. B.S., geology, University of Illinois, 1969; M.S., oceanography, Oregon State University, 1975; Ph.D., oceanography, University of Rhode Island, 1980. Employment: University of Rhode Island Graduate School of Oceanography: marine scientist, 1980–1982; assistant research professor, 1982–1985; associate research professor, 1985–1989; professor, 1989–2007. Administrative positions at University of Rhode Island: dean, Graduate School of Oceanography, 1991–2000; vice provost for Marine Programs, 1991–2000; acting dean, College of Environment and Life Science, 1995–2000.
Assistant director for geosciences and coordinator of environmental research and education programs, U.S. National Science Foundation, 2000–2007. Climos, Inc., chief science officer, 2007–2009. Climate Response Fund, CEO, 2009-2011, Florida Atlantic University, Executive Director Harbor Branch Oceanographic Institute and Associate Provost for Marine and Environmental Initiatives, 2011-present. Member of American Association for the Advancement of Science, The Oceanography Society, Geological Society of America. Officer of International Geosphere-Biosphere Programme, Joint Global Ocean Flux Study, Ocean Drilling Program.
Member of the boards of the; the Consortium for Ocean Research and Education; Bermuda Institute for Ocean Sciences. Honors: Fellow, AAAS; Fellow, Geological Society of America; Outstanding Alumni Achievement Award, University of Illinois; University of Rhode Island Distinguished Alumni Award; Oregon State University Distinguished Alumni Award; Ambassador Award, U.S. Geological Survey; WLNE Freedom Torch Award; Distinguished Lecturer, U.S. Science Advisory Committee, Ocean Drilling Program. AGU Board of Governors, Development Board; Ewing Medal Committee (chair); Waldo Smith Award Committee (chair), Climate Communication Prize (chair). Seventy articles in peer-reviewed journals (11 in AGU journals), 33 peer-reviewed articles in Ocean Drilling Program volumes.