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Takeaways:
- The National Oceanic and Atmospheric Administration announced that the global concentration of compounds that destroy the ozone layer has decreased by over 50 percent since 1980.
- This is a result of international compliance with controls on the production and trade of ozone-depleting substances.
- Ozone-depleting substances (ODSs) over Antarctica have been declining slower.
Click here to view the original web page at: We did it! Harmful chemicals in the ozone layer drop by 50%, NOAA says