In 2009, then-Pennsylvania governor Ed Rendell introduced reporters from around the world to the city during the G20 economic summit. "If you asked people about Pittsburgh 10 or 15 years ago, they would have said 'steel and smog,'" he said. "Well, there's still steel in the Pittsburgh region," he continued, "but there is no smog." Yes, many heavy industrial jobs were gone for good, "But they've been replaced in a remarkable renaissance by a combination of green jobs, life science jobs, recreation, entertainment. Pittsburgh has undergone a remarkable transformation."