In any case, the real problem is not whether GHGs are a hypothetical source of future problems (they are). The real problem is whether mitigation is a useful response. When come to hurricane damage adaptation is what we need:
http://rsta.royalsocietypublishing.org/content/365/1860/2717
So we build all structures in low lying hurricane prone areas to withstand 15ft storm surges and 300 KPH winds without doing anything to slow down or mitigate the process? Your link is ten years old and no doubt based on data even older.