America Blog: Theres a new report out from the United Nations Intergovernmental Panel on Climate Change (IPCC), and its apparently a rough ride. The IPCC has three working groups of scientists. Working Group 1 (WG1) deals with the physical basis of climate science the physics, the mechanics of climate change. The latest Assessment Report (AR5) is being released over the next year, and the WG1 AR5 Summary for Policymakers (the executive summary) was released late last year. We covered that briefly...