Question+3

How do the things that we do affect the Ozone layer?

We don't cause it. It just happens. The period of time during which the climate has been stable enough to permit us naked apes to evolve to the point where we can have this interaction is but the blink of an eye to this planet. The Earth will cool. The earth will warm. The little specks called people scurrying about don't really affect it all that much, although what the Earth decides to do can affect us a great deal.

To my fourth Question