http://news.discovery.com/earth/ozone-layer-earth.htmlTHE GIST
* The ozone layer in Earth's upper atmosphere has stopped thinning, concludes a new report.
* A 1987 treaty that phased out the use of CFCs is believed to have worked to halt the thinning.
* Scientists expect the ozone layer to reach 1980 levels between 2045 and 2060.