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The ozone layer protects the Earth from the ultraviolet rays sent down by the sun. If the ozone layer is depleted by human action, the effects on the planet could ... The fact that the ozone layer was being depleted was discovered in the mid-1980s. The main cause of this is the release of CFCs, chlorofluorocarbons.
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library.thinkquest.org/26026/Environmental_Problems/ozo...
library.thinkquest.org/26026/Environmental_Problems/ozone_depletion.html
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Ozone depletion - Wikipedia, the free encyclopedia
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Ozone depletion describes two distinct, but related observations: a slow, steady decline of about 4% per decade in the total volume of ozone in Earth's stratosphere (ozone layer) since the late 1970s...
en.wikipedia.org/wiki/Ozone_depletion
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Montreal Protocol - Wikipedia, the free encyclopedia
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The Montreal Protocol on Substances That Deplete the Ozone Layer (a protocol to the Vienna Convention for the Protection of the Ozone Layer) is an international treaty designed to protect the ozone ...
en.wikipedia.org/wiki/Montreal_Protocol
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As a result of these chemical processes, the ozone layer is being depleted. Scientific observations show significant depletion throughout the year in both the northern and the southern hemispheres at middle and high latitudes, although not yet at the tropics.
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roo.undp.org/gef/gefos/gefos5.html
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Some chemical substances that we have been using in our homes, work and industries - when released into the atmosphere, results in the depletion of the ozone layer. Some of these ozone depleting substances include chlorofluorocarbons (CFCs)...
http://www.guyanachronicleonline.com/site/index.php?opt...
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Science: Ozone Depletion In the stratosphere, the region of the atmosphere between about 6 and 30 miles (10 and 50 kilometers) above the Earth's surface, ozone (O3) plays a vital role by absorbing harmful ultraviolet radiation from the sun....
http://www.answerbag.com/q_view/7181
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In layman's terms, how is the ozone layer being depleted? Science: Ozone Depletion In the stratosphere, the region of the atmosphere between about 6 and 30 miles (10 and... ... It acts as a shield by absorbing biologically active ultraviolet light (called UV-B) from the sun. If the ozone layer is depleted, more of this UV...
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www.answerbag.com/q_view/7181/date
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Explains how the ozone layer is being depleted, and what you can do about it. ... You have probably heard people talk about a "hole" in our ozone layer. Damage to our Earth's giant protective umbrella is more severe in the South Pole, but, even there, no actual "hole" exists. And only a slight thinning ... What's being done?;
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www.ec.gc.ca/ozone/DOCS/KIDZONE/EN/ozoneupthere.cfm
www.ec.gc.ca/ozone/DOCS/KIDZONE/EN/ozoneupthere.cfm
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Over some parts of Antarctica, up to 60% of the total overhead amount of ozone (known as the column ozone) is depleted during Antarctic spring (September-November). ... All other things being equal, and with adherence to the international agreements, the ozone layer is expected to recover over the next 50 years or so.
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www.ozonelayer.noaa.gov/science/basics.htm
www.ozonelayer.noaa.gov/science/basics.htm
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