Issue Date: September 3, 2012
Urban Soot Particles May Warm Climate Less Than Believed
Studies of urban soot particles indicate that scientists may be overestimating the climate-warming effect of such aerosols (Science, DOI: 10.1126/science.1223447). Combustion of fossil fuels or plant material emits soot, also called black carbon, to the atmosphere, where the particles can absorb sunlight. Researchers believed that subsequent chemical reactions in the air added coatings that could act as a lens to increase radiation . . .
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