United States | Cap and fade

California’s carbon market reaches an inflection point

With ramifications for the West Coast and beyond

Industrial steam billowing into a glowing sunrise above the San Fernando Valley in Los Angeles California.
Coast not clearPhotograph: Alamy
|Los Angeles|4 min read

IT WAS THE equivalent of a warning siren. The results of California’s latest auction of carbon allowances, released on May 29th, showed that prices had hit the floor. Each quarter companies shell out for credits that cover their greenhouse-gas emissions. Demand is weak, and lower revenues from the auction are bad news for lawmakers who are already trying to plug a $12bn budget deficit. The poor showing is also a signal that firms are not confident that California’s cap-and-trade programme, the fourth-largest carbon market in the world, will continue to exist.

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This article appeared in the United States section of the print edition under the headline “Cap and fade”

From the June 7th 2025 edition

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