Gas-phase kinetics of free radicals; catalytic processes in the atmosphere controlling global change of ozone; high-altitude experiments from balloons and aircraft; development of laser systems for stratospheric and tropospheric studies; development of high-altitude, long-duration unmanned aircraft for studies of global change.
Assistant Professor of Earth and Planetary Sciences
My research focuses on the habitability of the early Earth and how it was affected by crustal processes and changing surface environments. The study of the early Earth requires a clear understanding of present-day sedimentary processes as well as an appreciation of the non-uniformitarian character of the early Earth. My research integrates multidisciplinary approaches by applying stratigraphic, provenance and geochemical analyses paired with detailed knowledge of complex geology at outcrop- to basin-scale. Specifically, my contributions to the field focus on: (1) Furthering our understanding of the formation of crust during the Hadean and Archean, (2) evaluating processes of early life recorded in the rock record and studying the influence of impact-related environmental perturbations on the biosphere, and (3) characterizing the poorly understood tectonic processes in the Archean.
Clare Boothe Luce Assistant Professor of Earth and Planetary Sciences
Accretion, core formation, and composition of the deep interiors of Earth and other terrestrial planets. She combines high-pressure, high-temperature mineral physics experiments with planetary-scale modeling.
Fischer received a B.A. in Earth and Planetary Sciences and Integrated Science from Northwestern University in 2009, and a Ph.D. in Geophysical Sciences from the University of Chicago in 2015.
Professor of Environmental Science and Policy; Teresa and John Heinz Professor of Environmental Policy
DR. JOHN P. HOLDREN is the Teresa and John Heinz Professor of Environmental Policy at the Harvard’s Kennedy School of Government, CoDirector of the School’s Science, Technology, and Public Policy program, Professor of Environmental Science and Policy in the Department of Earth and Planetary Sciences, and Faculty Affiliate in the Paulson School of Engineering and Applied Science. He is also Visiting Distinguished Professor at Tsinghua University in Beijing, China, and Senior Advisor to the President at the Woods Hole Research Center, a pre-eminent scientific think tank focused on the role of the terrestrial biosphere in global climate change. From January 2009 to January 2017, he was President Obama’s Science Advisor and Senate-confirmed Director of the White House Office of Science and Technology Policy (OSTP), becoming the longest-serving Science Advisor to the President in the history of the position.... Read more about John Holdren
Professor of Earth and Planetary Sciences; Professor of Environmental Science and Engineering
Peter Huybers is a Professor of Earth and Planetary Sciences at Harvard University whose research interests lie in developing a better understanding of the climate system and its implications for society. On-going research involves interactions between volcanism and glaciation, trends and predictability of extreme temperatures, and implication of climate change for food production.
Huybers received a B.S. from the United States Military Academy at West Point in 1996 and a Ph.D. from the Massachusetts Institute of Technology in 2004.
Isotope geochemistry and cosmochemistry; the formation and early differentiation of the terrestrial planets; the chemical evolution of Earth's crust-mantle system; Earth systems evolution and environmental geochemistry.
Professor of Earth and Planetary Sciences; Director of Graduate Studies
Isotope geochemistry and historical geobiology. Re-animating ancient ecosystems and ocean chemistry using stable isotope systems, chemical speciation techniques, modern microbial experiments (for calibration) and theoretical considerations.
Stonington Professor of Engineering and Atmospheric Science; Professor of Chemistry and Chemical Biology; Affiliated Faculty Member of Earth and Planetary Sciences; Area Chair for Environmental Science and Engineering
Research in the Keutsch group is aimed at improving our understanding of photochemical oxidation processes of volatile organic compounds (VOCs) that produce tropospheric ozone (O3) and are central to secondary organic aerosol (SOA) formation. O3 and aerosol affect human health and climate, and uncertainties in the radiative effects of aerosol comprise the largest uncertainties in current estimates of anthropogenic forcing of climate. Our scientific approach builds on enabling new field observations of key VOC oxidation intermediates (OVOCs) via instrumentation and method development.