California’s cap and trade system, a market-based law that allows companies to buy and trade pollution allowances by decreasing their carbon emissions, may be disproportionately polluting communities of color. Ann Carlson, co-director of the Emmett Institute on Climate Change and the Environment at UCLA School of Law, says that worsened air quality in low-income communities can be addressed more effectively by separate clean air legislation rather than by changing the current climate law.

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