Were it not sad, your article on the way the American Congress debates climate change would be quite funny (“Full of Sound and Fury,” July 14, 2007). As you say, the legislature of the greatest polluter of them all grapples with a bewildering array of ideas about energy. As you show, the most likely outcome is an incongruous mess. In the end, it will have almost nothing to do with climate change. Besides, the American Congress is an excellent predictor of legislative conundrums around the globe. The sound and fury surrounding climate change everywhere will end up precisely nowhere. At least that should be clear by now to all and sundry. On the upbeat side, that is a very precious bit of information about things to come.