That's basically right on. As far as I can tell most mainstream scientists seem to think humans are a factor in global warming, but obviously this is still a point of some contention. Personally I don't know enough about the issue to be confident one way or the other, although from a common sense standpoint it certainly seems likely that we are influencing the earth's temperature.

BlueSky - Claus has been known to, on very rare occasions, be a wee bit sarcastic.