I am pretty sure that there will be another World War. The way that things are going with the countries at the moment, I wouldn't be surprised if all hell breaks loose pretty soon. I really hate war. Why can't these important "leaders" just put aside their differences and realise the one thing that we all have in common: We are all Human beings.
Regarding the Global Warming scare: We cannot do anything to suppress this event unless all of the countries of the world participate. Right now, that doesn't appear to be the case.