22 Jul '11, 2pm

Stratospheric pollution is slowing global warming, study says

22 Jul 2011: Stratospheric Pollution Is Slowing Global Warming, Study Says Sulfur dioxide being spewed into the stratosphere by coal-fired power plants and volcanic eruptions has blunted the impact of global warming over the past decade, offsetting roughly one third of the increased heat caused by greenhouse gas emissions, according to a new study. Researchers at the U.S. National Oceanic and Atmospheric Administration (NOAA) found that stratospheric aerosols formed by sulfur dioxide have nearly doubled in the past decade, and that those aerosols have been reflecting a significant amount of heat back into space. “Aerosols acted to keep warming from being as big as it would have been,” said NOAA atmospheric scientist John Daniel, a co-author of the study published online in Science . Much of the sulfur dioxide that rose into the stratosphere six miles above the Earth came f...

Full article: http://e360.yale.edu/digest/stratospheric_pollution_is_sl...

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