Making Big Apple Green Starts with Empire State Building

NEW YORK — Most Manhattan office buildings are designed for paper pushers, but there is a new factory running at the end of a long dim corridor on the fifth floor of the Empire State Building. Here machines are whirring, a furnace is roaring, and dozens of blue-collar workers are bustling about. They are setting up to dismantle the building’s 6,514 double-hung window frames, to reuse the glass …