I have no idea whether those stats are correct but I am prepared to assume that they are.
And in terms of the math I cannot tell you what the actual incremental increase in temperature will be.
But if we are at a tipping point and we may well be then even a very small incremental change can have very serious repercussions. To use a stupid analogy again it my be the difference between ice and water. Or perhaps reduce the growing season several days or perhaps move viable farming a little further north or a few more hurricanes and wildfires.
Again very small incremental changes can have outsized impacts
Lets say the climate experts are right and earth warms up another 2 celsius over the next 45 years.
Heck, lets take the worst case scenario and say earth warms up 5 degrees C over the next 45 years.
Antarctica is currently -31C. And dont forget its summer there now.
See here:
https://www.timeanddate.com/weather/antarctica
So even a 5 degree celsius warming is only going to reduce the temperature there to about -26 celsius.
How in the hell is that going to melt the south pole?? It defies common sense.
Earth would have to warm about 30 degrees before the whole thing melts.
And since earth has only warmed 1.5 degrees since industrial age started in 1900, its literally impossible for earth to warm more than another 5 degrees.
Then add to that Canada's winters have hardly warmed up either.
I've lived in Toronto for the past 30 years and unfortunately winters have barely changed.
Every year its the same shitty, cold winter.
Unless I'm missing something, global warming is an exaggerated pile of bullshit.
Just my $0.02