At a conference speech Thursday, former vice president Al Gore announced the formation of a coalition of political, labor, and religious groups which will soon begin making ad buys on America's television channels warning of the dangers of global warming. Gore also called on the nation's TV outlet owners to match the group's purchases with equal amounts of time gratis. No doubt some will take him up on his offer. Can you imagine, though, if say, Newt Gingrich were to call on media companies to match spending for a program arguing for the need to cut federal spending? He'd have been laughed off the stage.