Associated Press: The U.N.'s scientific panel on climate change will write a special report on how to limit global warming to 1.5 degrees Celsius (2.7 degrees Fahrenheit) compared with pre-industrial times. The Intergovernmental Panel on Climate Change agreed Thursday to explore the issue after a request by world governments in Paris last December. Many scientists say it will be virtually impossible to keep warming below that level without removing vast quantities of heat-trapping greenhouse gases from the atmosphere....