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Industrial pollution has caused Arctic warming since 1880s mongabay.com August 9, 2007
Analyzing the chemical signatures of black carbon to determine its origin, scientists led by Joseph McConnell of the Desert Research Institute at the Nevada System of Higher Education in Reno report that the amount of soot from industrial emissions surpassed those from forest fires sometime in the 1880s. The trend lasted until the 1950s. The findings are significant because black carbon "absorbs sunlight extremely efficiently and thus can have a considerable impact on climate," especially in areas where sunlight is usually reflected by snow and ice, according to Science Express.
Model simulations by the researchers "suggest that black carbon's impact on climate during the period from 1906 to 1910 was about eight times as strong as what was typical during pre-industrial times." The researchers say the warming effect was strongest in the winter. CITATION: McConnell, J.R. et al (2007). 20th Century Industrial Black Carbon Emissions Altered Arctic Climate Forcing. 10 AUGUST 2007 VOL 317 SCIENCE. Authors included J.R. McConnell, R. Edwards, J.R. Banta and D.R. Pasteris at Desert Research Institute, Nevada System of Higher Education in Reno, NV; G.L. Kok at Droplet Measurement Technologies in Boulder, CO; M.G. Flanner, C.S. Zender and E.S. Saltzman at University of California, Irvine in Irvine, CA; M.M. Carter and J.D.W. Kahl at University of Wisconsin, Milwaukee in Milwaukee, WI. Comments? News options News index | RSS | Add to MyYahoo! Advertisements: Organic Apparel from Patagonia | Insect-repelling clothing |
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