Keeping Cool without Killing the Planet - Speaking of Chemistry

Refrigeration is a staple of modern living—we use refrigerants in air conditioners, aerosol spray cans, and, well, refrigerators. But it turns out that the most popular refrigerants of the 20th century depleted the ozone and had high global warming potentials. In episode 21 of Speaking of Chemistry, this video looks at the pros and cons of new more environmentally friendly alternatives. (3:19 min.)

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