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result sql = The sensitivity of polar ozone depletion to proposed geoengineering schemes.
The sensitivity of polar ozone depletion to proposed geoengineering schemes.
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char = e;code = 101
char = n;code = 110
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char = 3;code = 51
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char = d;code = 100
char = ;code = 32
char = 7;code = 55
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char = n;code = 110
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char = e;code = 101
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char = e;code = 101
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char = ;code = 32
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char = c;code = 99
char = o;code = 111
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char = e;code = 101
char = r;code = 114
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char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
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char = A;code = 65
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char = t;code = 116
char = a;code = 97
char = r;code = 114
char = c;code = 99
char = t;code = 116
char = i;code = 105
char = c;code = 99
char = ;code = 32
char = o;code = 111
char = z;code = 122
char = o;code = 111
char = n;code = 110
char = e;code = 101
char = ;code = 32
char = h;code = 104
char = o;code = 111
char = l;code = 108
char = e;code = 101
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char = r;code = 114
char = /;code = 47
char = >;code = 62
result sql = The large burden of sulfate aerosols injected into the stratosphere by the eruption of Mount Pinatubo in 1991 cooled Earth and enhanced the destruction of polar ozone in the subsequent few years. The continuous injection of sulfur into the stratosphere has been suggested as a "geoengineering" scheme to counteract global warming. We use an empirical relationship between ozone depletion and chlorine activation to estimate how this approach might influence polar ozone. An injection of sulfur large enough to compensate for surface warming caused by the doubling of atmospheric CO2 would strongly increase the extent of Arctic ozone depletion during the present century for cold winters and would cause a considerable delay, between 30 and 70 years, in the expected recovery of the Antarctic ozone hole.

Publication: Science 2008 May 30 ;320(5880)::1201-4. :doi: 10.1126/science.1153966.
Publication Date: 2008 May 30
Study Author(s): Tilmes, Simone;Müller, Rolf;Salawitch, Ross;
Institution: National Center for Atmospheric Research (NCAR), Boulder, CO 80307, USA. [email protected]
Shortcut link to this study:
The large burden of sulfate aerosols injected into the stratosphere by the eruption of Mount Pinatubo in 1991 cooled Earth and enhanced the destruction of polar ozone in the subsequent few years. The continuous injection of sulfur into the stratosphere has been suggested as a "geoengineering" scheme to counteract global warming. We use an empirical relationship between ozone depletion and chlorine activation to estimate how this approach might influence polar ozone. An injection of sulfur large enough to compensate for surface warming caused by the doubling of atmospheric CO2 would strongly increase the extent of Arctic ozone depletion during the present century for cold winters and would cause a considerable delay, between 30 and 70 years, in the expected recovery of the Antarctic ozone hole.
PMID: 18436741

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