Originally Posted by TopGunna

Yeah, it really is overly simplified. It's analogous to saying that drinking milk helps humans grow taller, therefore a tall person who drinks milk can attribute their height entirely to their milk consumption. But things like genetics, sleep patterns, other diet and lifestyle choices all influence height. To conclude that milk consumption is the cause simply because they move the same direction is extremely poor science, but that's as far as the AGW hypothesis goes.

Further compounding the problem is the fact that global temperatures are a function of THOUSANDS of variables, many of which are unknown or difficult to measure. Human height is a much more bounded problem (after all, no amount of milk-drinking will make you 10 feet tall), but we still can't predict with any accuracy how tall someone will be as a function of their milk consumption. That's the real fallacy in logic, IMHO.