Large historical changes of fossil-fuel black carbon aerosols
Article first published online: 26 MAR 2003
Copyright 2003 by the American Geophysical Union.
Geophysical Research Letters
Volume 30, Issue 6, March 2003
How to Cite
2003), Large historical changes of fossil-fuel black carbon aerosols, Geophys. Res. Lett., 30, 1324, doi:10.1029/2002GL016345, 6., , , , , , and (
- Issue published online: 26 MAR 2003
- Article first published online: 26 MAR 2003
- Manuscript Accepted: 27 DEC 2002
- Manuscript Revised: 13 NOV 2002
- Manuscript Received: 26 SEP 2002
 Anthropogenic emissions of fine black carbon (BC) particles, the principal light-absorbing atmospheric aerosol, have varied during the past century in response to changes of fossil-fuel utilization, technology developments, and emission controls. We estimate historical trends of fossil-fuel BC emissions in six regions that represent about two-thirds of present day emissions and extrapolate these to global emissions from 1875 onward. Qualitative features in these trends show rapid increase in the latter part of the 1800s, the leveling off in the first half of the 1900s, and the re-acceleration in the past 50 years as China and India developed. We find that historical changes of fuel utilization have caused large temporal change in aerosol absorption, and thus substantial change of aerosol single scatter albedo in some regions, which suggests that BC may have contributed to global temperature changes in the past century. This implies that the BC history needs to be represented realistically in climate change assessments.