Actually the ozone "hole" is not a hole at all. It is a seasonal thinning discovered back in 1956 by Dr. Gordon Dobson. Each spring, after the long sunless southern winter, the ozone layer thins over the Antarctica. Conversely, it always expands after the southern summer when ultraviolet radiation once again creates ozone. (The media didn't tell you that the "hole" closes each year, did it?) The annual thinning varies from year to year. In fact, less ozone was measured in 1985 than in 1990 though more freon was used. Why? Scientific data indicate a strong consistent correlation between ozone depletion and major volcanic explosions and other natural factors.
www.radioliberty.com
No comments:
Post a Comment