Fat tails

Climate Risk

Columbia Business School Spring 2026 B-term course

23 Mar 26

Climate change is both predictable and unpredictable. We don't need certainty to know it's a crisis

The next climate disaster is sure to come. When and where is the question

1 May 25

Climate shift uncertainty and economic damages

by Romain Fillon, Manuel Linsenmeier and Gernot Wagner

15 Mar 25

Updating climate beliefs based on latest IPCC report points to increased willingness to act

by Mark Freeman, Ben Groom, Frikk Nesje, and Gernot Wagner

30 Jan 25

Synthesis of evidence yields high social cost of carbon due to structural model variation and uncertainties

by Frances C. Moore, Moritz A. Drupp, James Rising, Simon Dietz, Ivan Rudik & Gernot Wagner

17 Dec 24

Martin L. Weitzman (1942–2019)

12 Jul 24

Carbon Dioxide as a Risky Asset

by Adam Michael Bauer, Cristian Proistosescu, and Gernot Wagner

6 May 24

What the Climate Fight Is Really About

Hint: It's about minimizing risks and uncertainties.

17 Jul 23

WSJ: "Weeks of Extreme Heat Strain Small Businesses and Economy"

By Scott Patterson, Jennifer Hiller, and Alyssa Lukpat

15 Jul 23

Will the Banking Busts Hurt Clean Tech?

Rather than impeding the clean-energy race, the recent collapse of the US start-up community's go-to bank offers valuable lessons for managing the public-private minuet that the net-zero transition requires. The doomsayers are missing the bigger picture.

17 Apr 23