New York Times: In 2002, the National Academy of Sciences published Abrupt Climate Change: Inevitable Surprises, a valuable report examining whether and how the building human influence on the climate system might lead to disruptive jolts. The most important finding, in a way, was that this was an area sorely in need of intensified research. Most of the monsters behind the door, to use an apt phrase from Stephen W. Pacala of Princeton, were plausible rather than probable. There were signs theyd escaped before...