Weather Underground: Wunder Blog

Weather Underground: Wunder Blog: "the sun has shown an unusual amount of activity the past 2 years, and last night both hemispheres were again treated to spectacular aurora displays (see the great aurora borealis and aurora australialis photos below!)

In a recent discovery published in March 2005 in Geophysical Research Letters, scientists reported that the high-energy particles that trigger auroras can also cause significant destruction of our protective ozone layer. Normally, ozone destruction is associated with human-emitted Chlorofluorocarbons (CFCs) in the lower stratosphere. However, the new discovery shows that natural processes can cause significant ozone destruction in the upper stratosphere."