Ep. 25: It was like, bam, half the ozone layer over Antarctica is gone

Stereo Chemistry · Dec 20, 2019 · 25m

The discovery of the ozone hole in the mid-1980s sent shock waves through the scientific community and society at large. As scientists scrambled to make sense of the unprecedented phenomenon, a clear culprit emerged. Chlorofluorocarbons (CFCs)—once thought of as near-miraculous compounds that revolutionized refrigeration—were suddenly revealed to be one of the biggest environmental dangers known to humankind. What followed was an international push by scientists, media, and policy makers to ban CFCs. In October 2019, NASA announced the ozone hole is the smallest recorded since 1982. In this…