Volume 92 Issue 35 | p. 11 | News of The Week
Issue Date: September 1, 2014

Carbon Tetrachloride Emissions Continue Despite Ban

Researchers estimate releases of stratospheric-ozone-depleting chemical average 39,000 tons per year even though the Montreal protocol has severely restricted its use
Department: Government & Policy | Collection: Sustainability
News Channels: Environmental SCENE
Keywords: ozone depletion, Montreal protocol, carbon tetrachloride

To protect Earth’s ozone layer, most uses of carbon tetrachloride were banned years ago. According to reports filed by countries around the world, emissions of this ozone-depleting substance were virtually nil since 2007. But researchers now estimate that some 39,000 metric tons of the chemical were released each year from 2000 to 2012.

“We are not supposed to be seeing this,” says Qing Liang, a NASA atmospheric scientist who led an international . . .

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