The rogue emitters of an ozone-killing chemical have been exposed. How can they be stopped?


A crooked industry in China has been releasing ozone-depleting chemicals into Earth’s atmosphere for years. Now, many of the culprits have been exposed. 

CFC-11, an illegal chemical used to make foam insulation used in homes and buildings, has been banned globally for decades. But scientists spotted an uptick in the chemical’s abundance in the air since 2012, meaning its overall decline has slowed. Researchers concluded in May that there must be a new source of these pollutants. 

Exactly who was annually spewing some 14,000 thousand tons of a chemical that erodes the ozone layer — which keeps life on Earth from getting irradiated by the sun — wasn’t known.  Read more…

More about Science, China, Noaa, Pollution, and Ozone Layer

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