Dr. Marc Fischer is staff scientist in the Sustainable Energy Systems group and Environmental Energy Technology Division at the Lawrence Berkeley National Laboratory (LBNL), and is an adjunct associate research scientists at the Air Quality Research Center at the University of California, Davis. Dr. Fischer has co-authored more than 50 refereed journal publications. Fischer's current work focuses on atmospheric studies of natural and anthropogenic processes affecting greenhouse (GHG) gases (and other atmospheric constituents, and development of sustainable solutions to energy and environmental problems. As part of ongoing work, Fischer and colleagues are quantifying the sources of California's GHG emissions, their long-term trends, and identifying cost-effective options to mitigate emissions.