Mark Z. Jacobson is a Professor of Civil and Environmental Engineering at Stanford University. The main goal of his research is to understand physical, chemical, and dynamical processes in the atmosphere better in order to address atmospheric problems, such as climate change and urban air pollution, with improved scientific insight and more accurate predictive tools. He also evaluates the atmospheric effects of proposed solutions to climate change and air pollution, examines resource availability of renewable energies, and studies optimal methods of combining renewables. To accomplish many of these goals, he has developed and applied numerical solvers to simulate gas, aerosol, cloud,radiative, and land/ocean-surface processes.