According to sify.com, soot from the burning of fossil fuels contributes far more to global warming than has been thought. But, unlike carbon dioxide (CO2), soot lingers only a few weeks in the air, so cutting emissions could have a significant and rapid impact on the climate.

If soot emissions were eliminated, more than 1.5 million premature deaths from soot inhalation could be prevented worldwide each year, reports the Journal of Geophysical Research. more »