Credit: American Chemical Society

We've had the delightful benefits of air conditioning and refrigeration for more than a hundred years now. In the early days, dangerous chemicals were used as refrigerants. Eventually, chlorofluorocarbons (CFCs) were developed.

Decades later, scientists figured out CFCs were destroying the . So how are chemists helping us keep cool without killing the planet? Sophia Cai explains in this week's episode of Speaking of Chemistry.

Check it out here: