Beliefs, evidence, and climate action
by Mark Freeman, Ben Groom, Frikk Nesje, and Gernot Wagner
I’m a climate economist at Columbia Business School and author of six books, including Climate Shock and Geoengineering: the Gamble. Here you find my research, teaching, writing, speaking, and current preoccupations squarely focused on climate risks and solutions.
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Featured Posts (5 of 1,166)
The AI Revolution Mirrors the Green Transition
The need for massive upfront investments and the likelihood of significant job displacement imply remarkable parallels between the AI buildout and the green transition. In both cases, the state has an important role to play in guiding market forces on behalf of the public good.
SCOPE
by Hidde Kolmeijer and Gernot Wagner
Observations are the dominant climate uncertainty in impact projections
by Kevin Schwarzwald, Nathan Lenssen, Alia Bonanno, Thomas Bearpark, Radley Horton, and Gernot Wagner
Projects (7 of 15)
Research
Published research in journals from Nature, Science, and PNAS to field journals across several disciplines, plus current working papers.
Teaching
Course syllabi, Columbia CaseWorks case studies, Financial Times mini-case studies, and other teaching materials.
I (co-)teach Business and Climate Change, the most popular elective at Columbia Business School taken by 500 of 800 MBAs each year. I also teach Climate Policy, Climate Risk, and a travel course on Green Industrial Policy in Europe. (All are offered in the spring term, and most open via the usual cross registration channels.)
Columns
My monthly, globally syndicated column for Project Syndicate, translated into a dozen languages, and my earlier bi-weekly Risky Climate column for Bloomberg Green.
Geoengineering: The Gamble
"An important read." (The Sunday Times) — "A stark warning." (The Guardian)
Climate Shock
Read the NYT op-ed, the infamous pop quiz, our Salon feature, or Foreign Affairs and Atlantic essays. Watch the TEDx talk: “From Climate Shock to Geoengineering.”
Climate Knowledge Initiative
Columbia Business School initiative with the mission to provide rigorous techno-economic analyses, generate actionable insights for decision-makers, and advance climate solutions across diverse stakeholders, while unapologetically flagging where business and public interests diverge.
Audio & Video
Audio and video of radio and TV appearances, recorded talks, and other clips.