Whatever happened to the hole in the ozone layer? - Stephanie Honchell Smith
Whatever happened to the hole in the ozone layer? - Stephanie Honchell Smith with tags ozone hole, ozone layer, hole in the ozone, hole in the ozone layer, ozone, stratosphere, cfcs, hfcs, chlorofluorocarbons, montreal protocol, mario molina, sherwood rowland, paul crutzen, nobel prize, ozone molecules, chlorine atoms, uv radiation, skin cancer, uv light, ozone depletion, photosynthesis, ronald reagan, margaret thatcher, hydroflourocarbons, kigali amendment, education, animation, stephanie honchell smith, denys spolitak, ted, ted-ed, ted ed, teded, ted education
Discover what caused the hole in the ozone layer, and how the Montreal Protocol helped restore it by banning harmful chemicals.
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In the 1980s, the world faced a huge problem: there was a rapidly expanding hole in the ozone layer. If it continued to grow, rates of skin cancer could skyrocket, photosynthesis would be impaired, agricultural production would plummet, and entire ecosystems would collapse. So, what happened? Stephanie Honchell Smith shares how decisive global cooperation helped restore the ozone layer.
Lesson by Stephanie Honchell Smith, directed by Denys Spolitak.
This video made possible in collaboration with Speed & Scale
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