COSMIC rays are off the hook as a cause of the ozone hole, says Rolf Muller, an atmospheric scientist at the Research Centre in Jülich, Germany.
It has been suggested that cosmic rays’ high energy eats away at the ozone hole by breaking down man-made chlorofluorocarbons. But Muller found no correlation between the activity of cosmic rays and ozone levels in the polar regions, where the CFC breakdown was supposed to take place.
