Severe Arctic Ozone Loss 259
iONiUM writes
"The BBC reports that 'Ozone loss over the Arctic this year was so severe that for the first time it could be called an "ozone hole" like the Antarctic one, scientists report. About 20km (13 miles) above the ground, 80% of the ozone was lost, they say. The cause was an unusually long spell of cold weather at altitude. In cold conditions, the chlorine chemicals that destroy ozone are at their most active.' This is the first time in observational history that the Arctic ozone has been depleted to such extensive levels (abstract). This will mean high UV problems for Russia, Greenland and Norway."
Re:Where have I seen this before (Score:4, Insightful)
> But hey make up your mind, is this Arctic cold snap caused by Global Warming too, or what?
Yes. The colder air than usual in the stratosphere is caused by the fact that greenhouse gases insulate so much that less heat escape to space. Common sense actually. So yes, this phenomenon is a very good indication that the greenhouse effect is both real and increasing.
Really, only the anti-science loony fringe denies global climate changes now a days, the scientific evidence for man made influence on the present climate change keep on coming, and is getting confirmed from many different sources. AFAIK, not a single scientific study trying to find other causes than human influence, have succeded in explaining what is going on.
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Regards
Re:Global warming (Score:5, Insightful)
The air has been exceptionally cold up there? Where is all that global warming everyone is speaking about?
Mr. Republican/Tea party member, the correct term is "Climate Change".
Enjoy the rest of your science bashing day.
Can you point to a time... any time in history when earth was NOT experiencing "Climate Change"?
Re:Note to self... (Score:3, Insightful)
How much are you willing to bet that this will be used to try to debunk global warming because there is an area that has colder then average weather.
As much as I would be willing to bet that this will be used to try to prove global warming because there is an area that has colder than average weather.
Re:Where have I seen this before (Score:2, Insightful)
So the ends justify the means.
Ozone hole deniers and global warming through CO2 deniers are both the same, people who refuse to believe that physics works.
Re:Where have I seen this before (Score:4, Insightful)
Re:I call bullshit (Score:4, Insightful)
That applies to a solitary chemical reaction. Atmospheric chemistry deals with equilibria. Equilibria shift with temperature.