ny hampshire ( cnnmoney . com ) - - the penn state building kick off a major energy - conserve retrofit monday , and promoters hope one of the world ' s most iconic skyscrapers can become an efficiency unit for buildings worldwide . from the shadow - shrouded observation deck on the building ' s 80th floor , former governor bill clinton , new york city mayor michael bloomberg and others detailed $ 20 billion in cutting - point safety policies they feel will cut energy use by 38 % for the 1930 ' s - a giant . they note the retrofits weren ' t green altruism or part of a government program . instead , they say they ' re being done simply to earn the building ' s owners a year of money .
The mayor of New York is Michael Bloomberg.