You keep citing this and it's probably because you think "Oh, it's just a couple of degrees--no big deal." But that's not how science works.
A 2 degree Celsius (3.6 degree Fahrenheit) rise in global temperatures above pre-industrial levels is considered a critical threshold that could lead to dangerous and cascading effects of climate change. This warming would shift the distribution of daily temperatures to higher temperatures, making extreme temperatures more common. For example, at 1.5 degrees of warming, there would be up to 19 extra days of extreme heat per year on average, while at 2 degrees of warming, there would be around 29 additional days.
The question still is Is man the main cause, and if that answer is yes, can we really do anything to stop it, or even slow it down a bit. We won't/can't stop China and others from building new coal plants as fast as they can build them, and we can't reduce enough, fast enough to offset what they are doing. Even if we manage by some miracle to slow the progress by 3 or 4 years, we really didn't make a difference.
So, where do you put most of your money and effort? delaying the inevitable or preparing to deal with it. I think you have to do both, but be realistic you are not going to stop it. Almost 97% (not my number) of greenhouse gasses are natural, so even if we could reduce human gas by 1/3, we would be talking about 1% change. the 1/3 number won't ever happen worldwide, and even if we could it doesn't change the problem. If the damage is bad enough, we kill 3/4 of mankind that might fix it.
I hear people here complain, I don't see them putting forward real fixes. Modern cars are lightyears cleaner and more efficient than 40 years ago, heating, cooling, and lighting our homes use far less power than even 20 years ago, modern electric plants in US are much cleaner than the near past, not to say nothing of wind, water, and solar power, and yet none of that has been enough to put a dent in the problem.
So, to the brainiacs on the board, explain what we as Americans can really do to slow the spread. We know how well scientist answers on Covid worked. In our household, we retired 3 years ago, we drive 75% less than we did and our 2 vehicles are more efficient, We went from incandescent bulbs to squiggly to LED's, our air conditioners use 1/2 the power they did 30 years ago. We gave up a 30 ft motorhome for light weight travel trailer towed by a Frontier, that improved gas mileage on the road by 1/3. It seems to me we have done a pretty good job, and yet have not made a dent. So again, put down practical fixes than can make enough of a difference to bend the curve in a meaningful way.