ScienceCast 161: Mystery in the Ozone Layer
Almost 30 years after the Montreal Protocol put the brakes on ozone-depleting chemicals, one compound remains stubbornly and mysteriously abundant in the atmosphere.
4 Stunden 8 Minuten
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NASA Science news is too exciting for plain text. Educational "ScienceCast" videos are fun, lively, entertaining--anything but plain. Join us for a new episode weekly as we look into the science behind discoveries on Earth, the Solar System, and beyond...
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