Jeff Ball

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.

James Gallagher, senior vice president of Energy and Telecommunications with the New York City Economic Development Corporation, and Jeff Ball, environmental news editor for the Wall Street Journal, discuss Mayor Bloomberg's plan to bring windmill power to New York City.