HCFCs
There's a Dangerous Downside to the Chemicals That Helped Save the Ozone Layer
Ozone-destroying chlorofluorocarbons were banned in 1989 but the chemicals that replaced them in refrigerators and air conditioners are contributing to global warming.
Why Is a Long-Banned Chemical Still Choking the Ozone Layer?
Carbon tetrachloride remains abundant in our atmosphere even though we've stopped producing it.
China to Phase Out Production of Ozone-Depleting, Super-Warming Greenhouse Gas
Considering China's dominant role in HCFC production in the developing world, it's clearly an important step to an all out ban on all HCFCs.
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