Maximilian Auffhammer is the George Pardee Jr. Professor of International Sustainable Development at UC Berkeley and director of International Area Studies (http://are.berkeley.edu/~auffham). His research focuses on environmental and resource economics, energy economics and applied econometrics. His recent work has focused on the impacts of climate change and air pollution on economic outcomes. Recent publications include Pounds That Kill: The External Costs of Vehicle Weight (2014), Unobserved time effects confound the identification of climate change impacts (2013), Clearing the Air? The Effects of Gasoline Content Regulation on Air Quality (2011), Detection and Consequences of Data Error: Evidence from the Human Development Index (2011), Rice yields in tropical/subtropical Asia exhibit large but opposing sensitivities to minimum and maximum temperatures (2011).