WASHINGTON (AP) - The Environmental Protection Agency is clamping down on power plant pollution in 27 states, including Arkansas, that contributes to unhealthy air downwind.
EPA Administrator Lisa Jackson announced on Thursday a plan to reduce smokestack pollution causing smog and soot in downwind states - where it combines with local air contaminants, making it impossible for those states to meet air quality standards on their own.
The rule differs from one proposed by the Obama administration in July.