For a handful of states that rely heavily on electricity from aging coal plants and aren't compelled to close them under other air pollution rules, this will buy them a few years. (powerforthepeopleva.com)
They say that by packaging reductions in greenhouse gas emissions with other environmental measures, like cutting other power plant emissions, they could win concessions on other pollution rules. (nytimes.com)
On the merits, there's a good case for stringent pollution rules. (newrepublic.com)