Gernot Wagner (1980 in Austria) is an Austro-American climate economist at Columbia Business School, where he is a tenured full professor.

[5][6] Wagner writes a monthly column for Project Syndicate, and is the co-author, with Martin L. Weitzman, of Climate Shock,[7] a Top 15 Financial Times-McKinsey Business Book of the Year 2015.

[11][12][13] Wagner was a member of the six-person lead author team, including Suzi Kerr, that wrote the World Bank's Emissions Trading in Practice : A Handbook on Design and Implementation.

[15] Wagner's latest academic work on this topic, joint with Kent Daniel of Columbia University and Bob Litterman of Kepos Capital further emphasizes the importance of pricing climate risk and uncertainty.

"[20][21] The article was noticed by CNN, where the journalist said: "Scientists are proposing an ingenious but as-yet-unproven way to tackle climate change: spraying sun-dimming chemicals into the Earth's atmosphere.