Global warming will happen and isn't a myth. It's consequences will be disastrous and many land living species will die out. There's plenty of evidence that suports that. The debate is whether or not, we are responsible. Which may very well be a myth. And if we are responsible, can we do anything about it?
We even know that the polarity of Earth will switch one day. That'll be interesting. We have no idea what effect that will have.
Huricanes are the result of differences in heat between the poles and the equator. The polar ice caps melting will raise the temperature of the poles, which will even out the heat difference and lead to less severe hurricanes. Elemental metereology.