Catalytic processes in the atmosphere controlling global change of ozone; development of laser systems from stratospheric and troposheric studies; development of high-altitude, long-duration unmanned aircraft for studies of global climate change

Dynamic meteorology; large scale atmospheric and climate dynamics; stability and predictability of dynamical systems

Tectonic and sedimentary field geology; Proterozoic paleoceanography, plate tectonics, carbonates and chemostratigraphy; Snowball Earth phenomena

Glacial cycles; past atmospheric conditions; past ocean circulation; climate change

Air pollution, atmospheric transport, regional and global atmospheric chemistry, biosphere-atmosphere interactions, climate change

Tropical convection and large scale atmosphere-ocean dynamics; global chemistry

Effects of boreal fires on atmospheric composition and air quality in a future climate; analysis of MISR data for injection heights of fire plumes; trends in ozone

Atmospheric particles, cloud formation, and climate change; energy, pollution, and climate; mineral origins of life; energy technology; biosphere-atmosphere feedback.

Marine nitrogen cycling; coastal and offshore plankton productivity; biological-physical interactions in the sea; effects of climate change on marine systems

Chemistry of the atmosphere and oceans, including interactions with the biosphere; evolution of planetary atmospheres; global carbon cycle

Long-term measurements of net carbon exchange, canopy-atmosphere exchange of selected trace gases, and regional atmospheric chemistry

Earthquake source processes; fault and crack dynamics; lithospheric stressing and seismicity; hydrologic and surficial processes; pore fluid interaction with earth materials; landslides; episodic glacial motions

Geochemical oceanography; stable isotope geochemistry; paleoclimatology; climate change; carbon sequestration; energy technology

El Niño's dynamics; large-scale oceanic circulation; past climate dynamics

Chemistry of the atmosphere on global and regional scales, including stratospheric and tropospheric chemistry