On the heels of the first definitive signs of the ozone layer recovery last year, an international team of scientists discovered that production and emission of a banned, potent ozone-depleting chemical is on the rise again. A new research finding, published in Nature on May 23, locates the source region for about half of those new emissions. Since 2013, they found that an increase of about 7000 tons per year of trichlorofluromethane, or CFC-11, added to the atmosphere originates from eastern China.
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Tuesday, May 28, 2019
NASA-supported monitoring network assesses ozone layer threats
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