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16 de oct. de 2019 · The CFCs were added to the atmosphere at the parts per billion level. “But CFCs were also very effective at depleting stratospheric ozone, which protects us from harmful solar ultraviolet radiation, and their use created a hole in Earth’s stratospheric ozone layer.
1 de dic. de 2023 · Find answers to frequently asked questions about the ozone layer, ozone depletion, and the effects of ozone depletion on health and the environment.
21 de dic. de 2015 · Re-patching the ozone hole is an environmental success story that's worth remembering as we work to contain climate change, say University of Melbourne experts.
15 de abr. de 2020 · NASA Data Aids Ozone Hole’s Journey to Recovery. On Sept. 16, 1987, policymakers and scientists from around the world gathered at the International Civil Aviation Organization’s headquarters in Montreal, preparing to take action on the day’s most urgent topic: Depletion of the Earth’s protective ozone layer.
10 de nov. de 2020 · The discovery of the ozone hole shocked the world and propelled nations into action. Decades later, where does the problem stand?
12 de oct. de 2016 · Antarctica is the only place on Earth where it's reliably cold enough for an ozone hole to form. The ozone hole is an annual thin spot that forms in the stratospheric ozone layer over Antarctica in mid-September and October. When it comes to the ozone hole, chlorine is the enemy. The chlorine comes from chlorofluorocarbons (CFCs, for short ...
Hace 6 días · View the latest status of the ozone layer over the Arctic. Satellite instruments monitor the ozone layer, and we use their data to create the images that depict the amount of ozone.
