Friday, September 05, 2008

Global Warming Forecasts Not Taking Into Account Nanoscale Atmospheric Aerosols | NDN
Researchers from Arizona State University in the U.S. have released study findings indicating that a type of nanoscale atmospheric aerosol called brown carbon is currently ignored in broad-ranging climate computer models, a finding which could lead to more accurate forecasting of potential global warming activity. The article says that most studies on climate change have focused on carbon dioxide and other greenhouse gases, while other atmospheric components such as carbonaceous and sulfate particles from fossil fuels, biomass, ocean salt, and desert dust also contribute to warming and cooling. According to the researchers, brown carbon both warms the atmosphere and cools the earth surface, introducing “large uncertainty in the degree of warming predicted by climate change models."...

No comments: