An Obama-era rule has already reduced toxic air pollution like mercury from coal-fired power plants. So why did the EPA roll it back now? In a word, co-benefits.
The industry argued that waste coal isn't high enough quality to meet the pollution standards. Environmental groups say the move is bad for public health.
Recent fires at the Clairton Coke Works and temperature inversions have sparked a debate about what should be done to address air pollution in the county.
