Global Warming
How to export California's policy on carbon emissions

To the editor: A recent article on California's carbon market draws much-needed attention to new loopholes that undermine the state's flagship climate policy. This otherwise excellent piece falls short, however, in suggesting that the market's problems were inevitable. ("Despite California climate law, carbon emissions may be a shell game," Oct. 25) In fact, the California Air Resources Board rejected viable solutions that would have balanced federal regulators' concerns while preserving the integrity of the carbon market. Under one approach, utilities would have remained responsible for climate pollution they send to other states. While California cannot...