Al Gore used multiple references while trying to scare everyone into thinking that global warming was civilization’s fault.  There is an opposing argument to each claim in his movie, but I don’t have the time or energy to get to every one of them at once.
One reference used was the fact that hurricanes have caused many times more damage monetarily in recent years as opposed to back in the 1940s.
The one thing he fails to mention is the fact that the population of homes and businesses increased dramatically as well as the property value of those homes and businesses.
I know I’m going to mess up on the numbers so I’ll just give you a link to this VERY INTERESTING ARTICLE.