I think the misconception about global warming is that everything just get warmer.
We all know th weather moves in cyclical patterns, but as some experts have noticed, they are increasingly viceous and the cycles are getting shorter.
So out of the norm weather is generally a sign of abnormal weather patters. Global warming 'messes' with the normal cycle of weather. Which means more rain more often, spreading desert in zones where that kind of weather is normal. Colder then normal weather and hotter then normal.
It's the out of the norm stuff that scares me.
I could be wrong, but global warming as a word is pretty bad - it should be 'global weather chaos' or GWC, but that doesn't sound as good.