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Three options for better climate policy / Adele Morris, PlanetPolicy, 27/05/2014http://www.brookings.edu/blogs/planetpolicy/posts/2014/05/27-three-options-for-better-climate-policy-morrisThanks to a 2007 Supreme Court ruling that greenhouse gases are air pollutants under the Clean Air Act, the Environmental Protection Agency has to do something to control them. But the act is ill-suited to controlling a non-toxic global pollutant. The law requires the EPA to set separate emissions guidelines for each category of existing stationary pollution sources—one for power plants, another for oil refineries and so on—and then each state is supposed to write a compliance plan for every category. This fractured process is likely to lead to large differences in the marginal cost of emissions abatement among states and across industries, which makes no economic sense...