Guardian: The global warming effect of black carbon, or soot, has been greatly exaggerated due to mistaken assumptions about the atmospheric altitude at which its particles are concentrated, according to a new study.
Soot plumes belch from chimneys, stoves and forest fires, causing numerous health ailments and, it was thought, a contribution to climate change second only to carbon dioxide.
But when recent observations about the atmospheric height of soot particles were used, a model simulation by the...