I think anyone with two brain cells could at least admit that the human animal is at very least a contributing factor, without having to discard the possibility other factors are also at play.
Absolutely. Like I said, it's simple math. Add up all the forcings, and the result is what happens to the climate. When you do that, and the results square with satellite measurements of energy coming in, and energy coming out, well then you know what space you're working within. They have measured with a high degree of certainty the energy absorbtion over a wide range of bandwidths, and we know from laboratory experiments which bandwidths greenhouse gases are absorbing outgoing longwave radiation at. It's a pretty clear picture that is not easilly ignored, though easier for some than others :lol: