Those who hope the Live Earth concerts will do for the global-warming movement what the music of the 60s did for the civil rights and anti-war movements are headed for disappointment. Whether you loved it or hated it, 60s music was true folk art, the driving force of a cultural tidal wave. No politician can replicate that by organizing a concert series. Also, where are the global-warming counterparts to Dylan’s “The Times They Are A Changing,” the Youngbloods’ “Get Together,” or even Barry McGuire’s silly “Eve of Destruction”? There’s a big difference between bands performing their hits in the name of global warming and bands producing hits about global warming. IPCC reports, carbon taxes, and fuel economy standards are just not the stuff of which folk anthems are made. Finally, most people don’t go to rock concerts for the sermons. Let Gore preach a sermon of biblical eloquence. Still, at a rock concert, it don’t mean a thing if it ain’t got that swing.