17 May '18, 1pm

Emissions of Ozone-Destroying Chemical Mysteriously Rising

The 2015 Antarctic ozone hole area. NOAA Emissions of Ozone-Destroying Chemical Mysteriously Rising A new study from the National Oceanic and Atmospheric Administration (NOAA) shows an "unexpected and persistent increase" in global emissions of an ozone -depleting chemical even though an international treaty forced production to completely halt by 2010. NOAA scientists suggest that emissions are most likely from new, unreported production from an unidentified source in eastern Asia. Chlorofluorocarbons , or CFCs, were once found in countless products, including air-conditioning, refrigeration and aerosol-spray propellants. However, it was discovered they caused a giant hole in the ozone layer, which shields the sun's dangerous ultraviolet radiation from reaching Earth's surface. CFCs—including the second most abundant ozone destroyer, CFC-1—were banned under the landmark M...

Full article: https://www.ecowatch.com/ozone-destruction-cfcs-256965031...

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via @grist

via @grist

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