The Ozone-Depleting Chemical Banned Decades Ago Is Still In The Atmosphere
NASA research shows the ozone isn't faring as well as hoped.
Decades ago the use of carbon tetrachloride (CCl4) became strictly regulated.
CCl4 used to be widely used in refrigerators, dry cleaning, fire extinguishers, and aerosol cans, according to the EPA.
The United Nations Environment Programme (UNEP) reported that there have been no emissions in recent years.
But NASA says 39,000 metric tons of CCl4 were released every year in that time period.
That's 85,980,282 pounds every year.
This sloth is none too pleased, either.
The problem is: No one knows where it's coming from.
While emissions have slowed, they're still happening.
Watch the full NASA report below.
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