All Articles Tagged As: atmosphere

Chemists Find Important Contributor to Smog (3/23/2008)

Chemists have discovered that a chemical reaction in the atmosphere above major cities long assumed to be unimportant in urban air pollution is in fact a significant contributor to urban ozone-the main component of smog. ...> Full Article

Stratospheric ozone chemistry plays an important role for atmospheric airflow patterns (3/9/2008)

Interactions between the stratospheric ozone chemistry and atmospheric air flow lead to significant changes of airflow patterns from the ground up to the stratosphere. This is the result of climate simulations, which have just been published in the journal „Geophysical Research Letters" (Brand et al, Geophys. Res. Lett.). Scientists at the Research Unit Potsdam of the Alfred Wegener Institute for Polar and Marine Research, which is a member of the Helmholtz Association, have investigated a fundamental process for climate interactions in the Arctic. So far it is not known what causes natural variations of atmospheric air flow patterns which have been playing an important role for climate changes in the last decades. This basic knowledge is necessary to improve climate models that still hold much uncertainty. ...> Full Article

Exactly how sensitive is our climate? It may not matter... (10/29/2007)

Scientists have suggested that climate researchers and policy makers ought to worry less about working out exactly how sensitive Earth's climate will be to a doubling of carbon dioxide in the atmosphere. ...> Full Article

Scientists Estimate Mercury Emissions from U.S. Forest Fires (10/21/2007)

Forest fires and other blazes in the United States release about 30 percent as much mercury as the nation's industrial sources. ...> Full Article