The phrase "global warming" soon may go the way of "gasohol"—and for similar reasons.Although "gasohol" still describes gasoline containing 10% or so of ethanol, it's no longer an everyday word. And it doesn't appear on fuel pumps. The ethanol industry campaigned against the label when motorists encountered problems with early ethanol fuel blends and began to prefer neat gasoline.Years ago, this writer received a telephone complaint from someone at Archer Daniels Midland, the big ethanol maker, because he had written the word "gasohol" in a published article. "What's wrong with that?" I asked.The answer went something like this: &quo...