Since I started working in downtown Pittsburgh again I take the "T", our light rail system, into work everyday from the South Hills. A few weeks ago I was entering the Wood Street station and I noticed an advertisement from local coal company Consol Energy. It seems Consol wanted to remind us that even though we think we are being green by taking public transportation the trains that run from the South Hills into downtown Pittsburgh are powered by, you guessed it, dirty stinkin coal. It is too bad that the coal industry puts so much money into misleading advertisements that say coal is a "clean and green" energy source instead investing in clean or cleaner coal technologies. We would all be better off if they did.