Skip to comments.Ozone hole above the Arctic has actually been caused by COLD Weather
Posted on 01/29/2012 9:09:19 PM PST by smokingfrog
The first ozone hole above the North Pole has been aggravated by extraordinarily cold winter temperatures, say scientists.
Cooling of the ozone layer enhances the effect of ozone-destroying substances such as chlorofluorocarbons - CFC.
A repeated ozone hole above the Arctic is to be expected, say scientists from the KIT Institute of Meteorology and Climate Research.
About a year ago, the scientists detected that ozone degradation above the Arctic for the first time reached an extent comparable to that of the ozone hole above the South Pole.
At a level of around 13 miles above the ground, 80 per cent of the ozone was lost, potentially exposing people on Earth's surface to harmful ultraviolet-B rays from the sun, which can cause sunburn and skin cancer.
According to the study, occurrence of the Arctic ozone hole was mainly due to the extraordinarily cold temperatures in the ozone layer that is located at about 18 km height in the stratosphere, i.e. the second layer of the earth's atmosphere.
There, chlorine compounds originating from chlorofluorocarbons and other pollutants are converted chemically at temperatures below -78°C.
These chemical conversion products attack the ozone layer and destroy it.
If the trend for colder temperatures in the stratosphere observed in the past decades continues, repeated occurrence of an Arctic ozone hole has to be expected.
(Excerpt) Read more at dailymail.co.uk ...
“nope,court order insist,can’t drink”
I was just a kid then. I had read something about the supposed inevitable heat death of the universe...something about entropy. Then soon after while in a doctor’s office I saw that magazine cover and read the article. I was convinced the ice age was coming and we were all going to slowly freeze to death and the sun was going to burn out...yada yada. I decided the only way to survive was to build underground green houses. I don’t know where I got that idea.