Greg Asner is a faculty member of the Department of Global Ecology at the Carnegie Institution of Washington. He also holds a faculty position in the Department of Geological and Environmental Sciences at Stanford University. His scientific research centers on how human activities alter the composition and functioning of ecosystems at regional scales. Asner combines field work, airborne and satellite mapping, and computer simulation modeling to understand the response of ecosystems to land use and climate change. He directs the Carnegie Airborne Observatory, a new airborne laser and hyperspectral remote sensing platform designed for regional ecological studies.