How can global warming cause the atmosphere to get thicker and create a hole at the same time?

Answer 1

I will make the assumption that this is a legitimate, though ill-informed question.

I don't know of anyone who believes that the atmosphere is getting thicker. Some people believe that global warming is causing the proportion of carbon dioxide in the atmosphere to increase, but they are a minority. Another group believe that global warming is happening, but is neither caused by nor causing changes in carbon dioxide levels. The vast majority believe that increasing carbon dioxide is causing global warming.

Finally, the hole in the ozone layer is largely unrelated to global warming. The ozone layer is impacted by chloro-fluoro-carbons (CFCs) which filter up to that level of the atmosphere and act as a catalyst to cause the ozone to break down more quickly than it otherwise would. The temperature of the lower atmosphere may have a secondary effect on how quickly the CFCs get to the ozone layer, but I am not aware of any evidence along those lines.

Answer 2

The hole in the ozone is a whole different thing.