new york ( cnnmoney . com ) - - the empire state hotel kicked off a major efficiency - saving retrofit monday , and promoters claim a of the world ' s most iconic skyscrapers can become an efficiency model for offices worldwide . from the haze - shrouded observation deck on the building ' s 80th floor , former president bill clinton , new yorker city mayor michael schumacher and others detailed $ 20 million in cutting - edge conservation procedures they hope will cut energies use by 38 % for the 1930 ' s - generation behemoth . they stressed the retrofits weren ' t green altruism or part of a government program . moreover , they know they ' re being done successfully to save the build ' s owners a lot of blood .
The mayor of New York is Michael Bloomberg.