In the next 6 months where I live it WILL rain. I know with 100% certainty that in the next 6 months it WILL rain here. I probably won't rain tomorrow, but it might.
Are you familiar with Flood Maps? There are floods that are called "100 year Floods" because they are very large but low probability. About 1 per 100years. If we have a 100 year flood next week on the river that I live next to it does NOT mean that it will be 100 years before such a flood happens again. It will be on average.
This is the nature of probability and prediction. In the case of anthropogenic global climate change we KNOW exactly where it will lead. It's just a matter of timing.
Most of us who understand the science a bit better know that the earth will be just fine in the long run, minus a big swath of the biosphere. But indeed the REAL danger to us as humans is that we will destroy our way of life. That is a guarantee. Our economy is far more tenuous than life itself. We can easily destroy our civilization without killing off all living things. And that is 100% guaranteed if we ignore the physics and chemistry you claim no one is debating against.
Such as? You DO realize that many of the concepts that have been floated for climate change fixes were already done to take care of a lot of things previously right? Acid rain was greatly dealt with using a cap and trade kind of approach. But back in the early 80's the exact same complaints were there that these fixes would destroy the economy. They didn't. And we are better for it now. Same thing with CFC's.
So what we are seeing now with climate change skepticism is the EXACT SAME GAME that was played out many times before with regards to acid rain, CFC's, even cigarette-cancer linkage! And in all those case the "skeptics" were wrong.
Now the stakes are a lot higher. You wanna bet against the house?