MIT researchers, as part of an international team, examine the total warming impact of 25 major synthetic greenhouse gases.

Chlorofluorocarbons (CFCs) — commonly used in refrigerators and air conditioners — garnered public attention for their role in creating a hole in the ozone layer over Antarctica. As these chemicals were phased-down thanks to international agreements limiting their use, they were replaced by other synthesized gases that can still be harmful to the ozone layer and are greenhouse gases that contribute to climate change.  Despite this, synthetic greenhouse gases (SGHGs) beyond the CFCs have received relatively little attention from the research community — until now. 

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