On Friday, the U.N. climate panel, the Intergovernmental Panel on Climate Change (IPCC), produced its first overview in six years. It wasn’t about panic and catastrophe, which unfortunately has ...

Models, by definition, are approximations: useful, informative, and inevitably incomplete, because they are the only way to simplify a world too complex to grasp all at once. A new study on nitrous ...

Current global climate models (GCMs) support with high confidence the view that rising greenhouse gases and other anthropogenic forcings account for nearly all observed global surface warming—slightly ...