Amazing, when it comes to Terrorism, we spend billions in intelligence, defence and surveillance in case of million to one chances happening, and everyone is fine with it. Yet with things like Global Warming, which have certainly got more evidence than there was for, say, WMD's in Iraq, and its time to get out the Fiddle.
Is Global Warming a man-made phenomenon, I couldn't say. Is human industry having a detectable effect on the Environment? Yes, and since we all live on the same planet, those effects are Global. Now you can wrap that up in any name you so feel inclined, don't call it Global Warming if you like, that's an incorrect definition anyway, but it IS happening. Personally, I don't care who's fault it is, I'm not even sure if we can do anything about it if it is, but we need to take these things seriously and not shrug them off in the hope they will conveniently go away, there's is mounting evidence they will not in the short term.