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\nNASA Evaluates New Threats to Earth’s Ozone Layer\n

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\n\nPublisher:\n\nNASA\n\n\n
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\nScientists are closely monitoring positive signs of recovery of the Earth’s stratospheric ozone layer, which is depleted by the use of chemicals called chlorofluorocarbons (CFCs) for a range of industrial and commercial purposes. Even...\nScientists are closely monitoring positive signs of recovery of the Earth’s stratospheric ozone layer, which is depleted by the use of chemicals called chlorofluorocarbons (CFCs) for a range of industrial and commercial purposes. Even after the landmark Montreal Protocol banned these substances in the late 1980s, threats to the ozone layer persist. Scientists at NASA’s Goddard Space Flight Center including Susan Strahan and Qing Liang (both NASA/USRA) are weighing in to an ongoing debate about the relative impacts of continuing sources of ozone depletion, including short-lived chemicals not banned by the Protocol, the effects of climate change, and banned chemicals that are still being released into the atmosphere. All could potentially delay the recovery of the seasonal ozone hole over Antarctica.\n
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Resource Details

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Curator Rating
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Educator Rating
Not yet Rated
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Media Length
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2:50
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Grade
3rd - 11th
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Subjects
Science
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Media Type
Instructional Videos
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Source:
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\nNASA Goddard\n\n
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Date
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2017
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Language
English
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Audiences
For Teacher Use
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Usage Permissions
Fine Print: Educational Use
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Concepts

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climate change, chemicals, oceans, scientists, sharing
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video, camera phone, video phone, free, upload, ozone hole, ozone layer, layer, ozone, recovery, decades, delay, issue, banned, protocol, atmosphere, earth, amount, regulate, thin, projected, increase, land, ocean
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Best For: Explaining a topic
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\n\" data-title=\"Get Full Access\" data-container=\"body\" rel=\"popover\" tabindex=\"0\" aria-label=\"Play video: NASA Evaluates New Threats to Earth’s Ozone Layer\" href=\"/subscription/new\">\"NASA\n\n
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