Wall Street Journal: Climate-change legislation is declining in popularity the world over, so Prime Minister Kevin Rudd has concocted a new way to sell it–by telling voters they’ll come to their senses, eventually. “The government’s focus is taking decisions, hard decisions,” Mr. Rudd declared Tuesday, referring to his cap-and-trade bill and other expensive, big-government ideas. “Some of those decisions will not be popular, but decisions in the national interest need to be taken for the future otherwise …