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Soot Seen as Major Element in Global Warming

Recent research shows black carbon in soot may contribute to global warming by absorbing sunlight. Diesel engines are one source of soot. But wood fires in less developed countries -- including China -- are also a problem. NPR's Christopher Joyce reports.

Copyright 2002 NPR

Christopher Joyce is a correspondent on the science desk at NPR. His stories can be heard on all of NPR's news programs, including NPR's Morning Edition, All Things Considered, and Weekend Edition.