Wall Street Journal editor Jeff Ball talks about "green" ratings and "green" labels, what they mean, who sets green standards, and how Wal-Mart's decision to use green labels will affect the marketplace.
WNYC 93.9 FM and AM 820 are New York's flagship public radio
stations, broadcasting the finest programs from NPR, PRI and American Public Media, as well as a wide range of award-winning local
programming. WNYC is a division of
New York Public Radio.