Are current climate emission reduction goals set too high?

The world’s carbon intensity is declining at nowhere near the rate needed to limit global warming to 1.5C. Should we set a more feasible goal, asks Michael Spence

The global economy’s carbon intensity is declining at barely a quarter of the required rate.

NET-ZERO commitments are all the rage.

Countries, companies, and others worldwide have committed to eliminating their net greenhouse-gas emissions by a particular date — for some, as early as 2030.