29-05-2025
California should end its emissions offset program, researchers say
A California program that lets polluters avoid cutting a portion of their own carbon emissions by funding projects such as forest preservation is doing little to address climate change, researchers say in a new analysis.
Two University of California, Berkeley, professors who wrote the May policy brief are urging state lawmakers to replace the program, known as offsets, as they look to extend California's market-based system to cut carbon emissions.
The cap-and-trade system requires California's largest carbon emitters to pay the state pollution allowances in some cases for excessive emissions. But regulated emitters can buy up to 4 percent of what they owe carbon credits in one of the state-approved offset programs throughout the U.S. that are supposed to cut greenhouse gas pollution. Each credit is supposed to represent 1 ton of emissions avoided or abated.
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But many projects approved under the state's offset program do little to fight climate change, said Barbara Haya, director of the Berkeley Carbon Trading Project, which studies the effectiveness of carbon trading programs and offsets. She and Berkeley research fellow Stephan Lezak wrote the program analysis.
