Eco-efficiency and corporate responsibility are just two of the ideas that have been touted as ways to slow global warming. Find out whether some of those proposed remedies could do more harm than good! Also: Dennis Lehane on his new novel. Flautist Sir James Galway, a.k.a. "Lord of the Flute." Plus, actor Robert Wagner talks about being mentored by Spencer Tracy, and his passionate love affair with Barbara Stanwyck.