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I am not a scientist or especially not a climatologist, therefore my knowledge is very limited on each side of the issue of climate change so I ask these questions in all sincerity:
1) What happened to "global warming"?
2) Why is a mean global temperature rise of about 1 degree over a lengthy period a problem?
3) What happened to the ozone hole over the south pole?
4) What about scientific studies showing that, overall, there's an increase of ice in Antartica?
5) What happened to all the scientific evidence during the 70's predicting global cooling?