Astronomers searching the atmospheres of alien worlds for gases that might be produced by life can't rely on the detection of just one type, such as oxygen, ozone, or methane, because in some cases these gases can be produced ...
Astronomy
Sep 11, 2014
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(Phys.org) —Conifers emit volatile hydrocarbons, primarily terpenes, which we experience as the characteristic smell of the woods. In a complicated series of reactions involving ozone and sulfur dioxide, these compounds ...
Materials Science
Jan 9, 2014
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(Phys.org) —A Purdue University-led team of researchers discovered sunlit snow to be the major source of atmospheric bromine in the Arctic, the key to unique chemical reactions that purge pollutants and destroy ozone.
Earth Sciences
Apr 16, 2013
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(Phys.org)—Satellites show that the recent ozone hole over Antarctica was the smallest seen in the past decade. Long-term observations also reveal that Earth's ozone has been strengthening following international agreements ...
Earth Sciences
Feb 10, 2013
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(Phys.org)—Researchers have detected the presence of a pollutant-destroying compound iodine monoxide in surprisingly high levels high above the tropical ocean, according to a new study led by the University of Colorado ...
Earth Sciences
Jan 25, 2013
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U.S. Forest Service and Oak Ridge National Laboratory (ORNL) scientists have found that rising levels of ozone, a greenhouse gas, may amplify the impacts of higher temperatures and reduce streamflow from forests to rivers, ...
Earth Sciences
Oct 18, 2012
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As leading international scientists gather in Toronto to discuss new findings on ozone and climate change for the 22nd Quadrennial Ozone Symposium, U of T News spoke with Professor Kimberly Strong about her research, the ...
Earth Sciences
Aug 30, 2012
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New scientific analysis strengthens the view that record-breaking summer heat, crop-withering drought and other extreme weather events in recent years do, indeed, result from human activity and global warming, Nobel Laureate ...
Environment
Aug 20, 2012
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For decades, scientists have known that the effects of global climate change could have a potentially devastating impact across the globe, but Harvard researchers say there is now evidence that it may also have a dramatic ...
Environment
Jul 26, 2012
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A 20-year-old satellite that measured the ozone layer is expected to crash back to Earth late next week, but NASA said it still does not know where it will fall.
Space Exploration
Sep 17, 2011
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