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Author Bio

Matthew E. Kahn is a Bloomberg Distinguished Professor of Economics and Business at Johns Hopkins University, where he is the director of the 21st Century Cities Initiative. He is the author of Climatopolis: How Our Cities Will Thrive in the Hotter Future and the coauthor of Blue Skies Over Beijing: Economic Growth and the Environment in China. Mac McComas is the senior program manager for Johns Hopkins University's 21st Century Cities Initiative.