What's notable about 10CS's comments is how lacking they are in any kind of substance whatsoever. Also, they lack any kind of inquisitiveness, or urgency to learn.
The most important point to make is that, to the extent that Climate Change is natural, it is precisely because we were trying to learn and understand this point that we discovered our own impact on it. Yes, the Climate can, and does, change naturally over time. No, the recent period of warming is *not* because of "the last Ice Age". It is more rapid than can be accounted for by that effect. It's a clear signal on top of it. And it can be traced to the human impact.
It's unequivocal at this point. We can affect the climate. We already have done. And we will continue to do so unless, and until, people stop sticking their heads in the sand.