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.
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.
John L. Loeb Associate Professor of the Natural Sciences and co-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.
Scot T. Martin is the Gordon McKay Professor of Environmental Chemistry at Harvard University, with appointments in the School of Engineering and Applied Sciences & the Department of Earth and Planetary Sciences.