After discussing this topic with my friends, I figured I was ask for other point of views on this subject.

My POV: Global warming does exist, whether we see it's effects now or in 100 years, it is happening. With all the millions of cars etc pumping out co2 etc, it _must_ have some effect on our planet, sooner or later.

My friends POV: Global warming is bullshit and doesn't exist, all made up by government. All of these green houses gases we produce has no effect. (this was something he said he feeled "strongly" about).

Now, It's not like I can say to him he's wrong, because I guess it's still currently a matter of opinion? (even though facts & science would agree with me?)