You are probably aware that the US EPA today is proposing to update its so-called “good neighbor” power plant requirements, to reduce smog-forming nitrogen oxides emissions that blow from one state into others http://www2.epa.gov/airmarkets/proposed-cross-state-air-pollution-update-rule
This is a step in the right direction, but it is not enough. This proposal would in effect be a tool to help downwind states meet national clean air standards for ozone.
Well and good. But it would help them meet the already outdated 2008 ozone standard set during the more recent Bush era. So EPA must do more in the future to help downwind states meet the new ozone standard set earlier this year. Anything less than that will fail to adequately protect public health.