Climate Change 2007: The Physical Science Basis has recently been issued by the United Nations http://www.ipcc.ch/SPM2feb07.pdf [1] and is already being widely discussed. The Chronicle of Higher Education reports on discussions in Congress in an article titled "House Hearing on Global Warming Features Politics, Research, and Flatulent Dinosaurs." http://chronicle.com/daily/2007/02/2007020901n.htm [2]