Wall Street Journal: Tough economic times have a way of clarifying political priorities and forcing people to distinguish among needs, wishes–and fantasies. So you might think a politician as canny as Australian Prime Minister Kevin Rudd would know better than to blame his country’s new-found skepticism about the risks of global warming on something other than an evil conspiracy. In a speech in Sydney on Friday, Mr. Rudd claimed “climate-change skeptics, the climate-change deniers, the opponents of …