Newstrack India: A study published in Nature Geoscience indicates black carbon or soot produced by burning coal, wood, diesel and dung elevates damage to the environment by warming the atmosphere by several times. The researchers including atmospheric scientist V. Ramanathan from Scripps Institution of Oceanography at UC San Diego and Chemical Engineer Greg Carmichael of University of Iowa, said that the black carbon or its other forms could have contributed 60% of the current global warming effect of …