California Governor Jerry Brown plans to move forward with the implementation of Assembly Bill 32, the Global Warming Solutions Act, under which California seeks to take dramatic steps to reduce its greenhouse gas emissions. Questions have been raised about the wisdom of a single state trying to address a global commons problem, but with national climate policy developments having slowed dramatically in Washington, California is now the focal point of meaningful U.S. climate policy action.
California’s Plan
A key element of the mechanisms to be used for achieving California’s ambitious emissions reductions will be cap-and-trade, a promising approach with a successful track record, despite its recent demonization as “cap-and-tax” by conservatives and other opponents in the U.S. Congress.
Under this approach, regulators restrict emissions by issuing a limited number of emission allowances, with the number of allowances ratcheted down over time, thus assuring ever-larger reductions in overall emissions. Pollution sources such as electric power plants and factories are allowed to trade allowances, and as a result, sources able to reduce emissions least expensively take on more of the pollution-reduction effort. Experience has shown that cap-and-trade programs achieve emissions reductions at dramatically lower cost than conventional regulation.
Concerns
Yet some groups in California have been very uneasy about the prospect of cap-and-trade. In particular, the Environmental Justice movement has opposed this approach, citing concerns that it would hurt low-income communities. Professor Lawrence Goulder of Stanford University and I addressed such concerns in an article in The Sacramento Bee.
One expressed concern has been that a cap-and-trade policy might increase pollution in low-income or minority communities. The apprehension is not about greenhouse gases (the focus of AB 32), since these gases spread evenly around the globe and thus would have no discernible impact in the immediate area. Rather, it’s about “co-pollutants,” such as nitrogen oxides, carbon monoxide, and particulates, which can be emitted alongside greenhouse gases.
Because a cap-and-trade system would reduce California’s overall greenhouse gas emissions, it would also lower the state’s emissions of co-pollutants. Still, it’s possible, though unlikely, that co-pollutant emissions would increase in a particular locality. But here it’s crucial to recognize that existing air pollution laws address such pollutants, and so any greenhouse gas allowance trades that would violate local air pollution limits would be prohibited.
If current limits for co-pollutants are thought to be insufficient, the best response is not to scuttle a statewide system that can achieve AB 32’s ambitious targets at minimum cost. Rather, the most environmentally and economically effective way to address such pollution is to revisit existing local pollution laws and perhaps make them more stringent.
While much attention has rightly been given to the effects of potential climate policies on environmental conditions in low-income communities, it’s also important to consider their economic impacts on these communities. Reducing greenhouse gas emissions will require greater reliance on more costly energy sources and more costly appliances, vehicles and other equipment. Because low-income households devote greater shares of their income to energy and transportation costs than do higher-income households, virtually any climate policy will place relatively greater burdens on low-income households. But because cap-and-trade will minimize energy-related and other costs, it holds an important advantage in this regard over conventional regulations.
Moreover, a cap-and-trade system gives the public a tool for compensating low-income communities for the potential economic burdens: If some emission allowances are auctioned, revenues can be used to mitigate economic burdens on these communities.
The Way Forward
All in all, cap-and-trade serves the goal of environmental justice better than the alternatives. This progressive policy instrument merits a central place in the arsenal of weapons California employs. Beyond helping the state meet its emissions-reduction targets at the lowest cost, it offers a promising way to reduce economic burdens on low-income and minority communities.
Professor, a couple of points:
1. Any reference to “existing air pollution laws” in California must consider their existing utter failure for the vast majority of the State. In the Central Valley, one in five children has asthma, and one in four has some sort of respiratory ailment. Six kids in any given classroom has an inhaler or other medication either created or exacerbated by “existing air pollution laws”;
2. your inference that it would be easier to improve local air pollution laws, rather than create a carbon cutting program that would address environmental justice concerns, shows a serious lack of understanding when it comes to local air board mechanisms. Believe me (with a few years in the air pollution argument), it is much, much harder to implement and enforce actual pollution reductions at the local level. It’s sad, but true;
3. The economic impacts of California’s current carbon pricing mechanism are borne by taxpayers through subsidizing companies’ pollution credits (“free” allowances), and CARB neither applied the EAAC’s recommendations for mitigating costs via auction, nor its recommendations for rebates. Given that California’s tax structure relies quite a bit on regressive taxes, plus the likelihood that the most polluting structures will take free allowances rather than clean up, maintaining the status quo in these communities (see #1), how do you conclude that poor communities won’t bear the brunt of the pollution? They currently bear the brunt of existing air pollution laws.