ScienceDaily (Sep. 8, 2008) — A group of scientists affiliated with the International Geosphere-Biosphere Programme (IGBP) have proposed a new framework to account more accurately for the effects of aerosols on precipitation in climate models. Their work appears in the 5 September issue of Science magazine.
The increase in atmospheric concentrations of man-made aerosols—tiny particles suspended in the air—from such sources as transportation, industry, agriculture, and urban land use not only poses serious problems to human health, but also has an effect on weather and climate.
Recent studies suggest that increased aerosol loading may have changed the energy balance in the atmosphere and at the Earth’s surface, and altered the global water cycle in ways that make the climate system more prone to precipitation extremes.
It appears that aerosol effects on clouds can induce large changes in precipitation patterns, which in turn may change not only regional water resources, but also may change the regional and global circulation systems that constitute the Earth’s climate. Keep reading
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