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By Science News
The methane and carbon monoxide released during charcoal production have short atmospheric lifetimes compared with that of fossil fuel carbon dioxide. In the long run, the net effect of charcoal on the climate is nil because the wood used to produce charcoal was formed from carbon dioxide by photosynthesis. Recommending that nations convert from charcoal to propane is thus shortsighted.
Lee R. Kump
University Park, Pa.