Huffington Post: And now for some good news: Despite headlines, we can't be sure when our goose will be cooked. The recent release of the Working Group 1 report of the Intergovernmental Panel on Climate Change (IPCC) documents the steady gains we have made in understanding the climate system in general and in our own role as a species in driving climate change in the 20th and 21st centuries. But the report also made note of some areas of climate science that remain poorly understood. One of these is what causes...