Pittsburgh , however , was about to undergo one of its most dramatic transformations .
Although air quality was dramatically improved , and Pittsburgh 's manufacturing base seemed solid , questions abound about the negative effects Urban Renewal continues to have on the social fabric of Pittsburgh .
Pittsburgh , however , was about to undergo one of Pittsburgh 's most dramatic transformations .
Although air quality was dramatically improved , and Pittsburgh 's manufacturing base seemed solid , questions abound about the negative effects Urban Renewal continues to have on the social fabric of Pittsburgh .