Gernot Wagner is a climate economist and senior lecturer at Columbia Business School. His research, writing and teaching focus on climate risk and climate policy, spanning the gamut from individual lifestyle choices to the most controversial of techno-fixes (“Geoengineering: the Gamble”, Polity 2021). He writes a monthly, globally syndicated column and is a frequent contributor to The New York Times and The Washington Post, among others. For more information, see gwagner.com.