why is anyone pushing for tighter regs? Are people dying from brown/black lung that I am not aware of? .
Actually, the answer to your question is yes...people are dying.
But I'm afraid it may take a long time to explain......you could research it, and then at least qualify your opinion...
http://ephtracking.cdc.gov/showAirHIA.action
"Studies have shown a 15% decrease in the risk of heart disease deaths with every PM2.5 decrease of 10ug/m3"
Of course, it's always "someone else" who dies of the heart attack, suffers because of asthma, etc.
But, take my word for it. People are dying. It's a fair debate of how many people you want to die or be diseased vs. the costs and vs. other fuel (nukes, coal, etc.). But there is science and medicine and reasoning behind the regs.