Cass R. Sunstein, Columnist

Watch for Biden Decision on Unsung Climate Metric

Emissions policy could pivot on a technical judgment: How to measure the social cost of carbon.

November 10, 2020 at 2:00 PM UTC

Cass R. Sunstein is a former Bloomberg Opinion columnist. He is the author of “The Cost-Benefit Revolution” and a co-author of “Nudge: Improving Decisions About Health, Wealth and Happiness.”

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Photographer: Luke Sharrett/Bloomberg

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President-elect Joe Biden’s transition team has announced its four top priorities, and no surprise, climate change is among them. For that problem, the social cost of carbon is the straw that stirs the drink.

It’s the most important number you’ve never heard of.