Brookhaven Lecture

"457th Brookhaven Lecture: 'Aerosol, Cloud, and Climate: From Observation to Model'"

Presented by Jian Wang, Ph.D., Environmental Sciences Department, BNL

Wednesday, May 12, 2010, 4:00 pm — Berkner Hall Auditorium

In the last 100 years, the Earth has warmed by about 1�F, glaciers and sea ice have been melting more quickly than previously, especially during the past decade, and the level of the sea has risen about 6-8 inches worldwide. Scientists have long been investigating this phenomenon of �global warming,� which is believed to be at least partly due to the increased carbon dioxide (CO2) concentration in the air from burning fossil fuels. Funded by DOE, teams of researchers from BNL and other national labs have been gathering data in the U.S. and internationally to build computer models of climate and weather to help in understanding general patterns, causes, and perhaps, solutions. Among many findings, researchers observed that atmospheric aerosols, minute particles in the atmosphere, can significantly affect global energy balance and climate. Directly, aerosols scatter and absorb sunlight. Indirectly, increased aerosol concentration can lead to smaller cloud droplets, changing clouds in ways that tend to cool global climate and potentially mask overall warming from man-made CO2.

Hosted by: Stephen Musolino

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