Nepali Times: For decades, governments around the world have tried to cut emissions of carbon dioxide in the atmosphere so global warming stays below a 2 degree rise by the end of the century. That target is not likely to be met. But there is another kind of carbon tiny soot particles given off by vehicles, cook stoves and crop fires called black carbon that contribute significantly to global warming which may be easier to control. An international conference in Kathmandu last week organised by ICIMOD...