Fledermaus,
Our destruction of the ozone layer should have no effect on the Northern Lights, other than you might get a little more tan while visiting Scotland.

In the future, you are probably much better off posting such questions in a more appropriate thread/forum, such as in Q&A - more likely someone will see and answer them.

Oh, and welcome to BAUT. I love your opera.

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At night the stars put on a show for free (Carole King)