Christian Science Monitor: One of my favorite cartoons shows a man writing a letter while snow falls outside his window. The letter states: “Dear weatherman, I just shoveled two feet of ‘partly cloudy’ off my driveway.” Let’s hope the United Nations scientific committee on global warming does not receive such letters in the future. Its forecasts of a toaster Earth this century so far seem on track with record temperatures in recent years. But the committee, known as the Intergovernmental Panel on Climate Change …