Satellite data show the Antarctic ozone hole as it appeared last fall.
Image courtesy NASA
Brian Handwerk
for National Geographic News
Published May 5, 2010
What would the 1980s have been without big hair and ice-cold wine coolers?
Luckily no one had to find out: Key substitutions in hairsprays and refrigerants allowed such products to exist without chlorofluorocarbons (CFCs), which were found to be ripping a huge "hole" in Earth's protective ozone layer.
Today the ozone hole, which was first spotted 25 years ago, appears headed for a happy ending, thanks to unprecedented international action.
Could a similar effort rein in climate change? And is the closing ozone hole actually making global warming worse?
more
http://news.nationalgeographic.com/news/2010/05/100505-science-environment-ozone-hole-25-years/