new york ( cnnmoney . net ) - - the empire state project kicked off a major fuel - saving retrofit monday , and promoters hope another of the world ' s most historic towers can play an environmental model for construction world . from the shadow - shrouded sky panel on the building ' s 80th storey , former president bill pierce , new baltimore city mayor michael bloomberg and all detailing $ 20 million in cutting - margins ecological measures they hope will limit energy use by 38 % for the 1930 ' s - era conglomerate . they note the retrofits weren ' t green egotism or segment of a government plan . therefore , they stated they ' re being done partly to save the building ' s buyers a bunch of money .
The mayor of New York is Michael Bloomberg.