Earlier quoted context omitted.
If you believe that, you're probably in a cult. The most extreme climate models don't predict anything you could reasonably characterize as "won't be a planet left."
I am in the cult of "living in the present, where one part of the world has experienced one of the severest droughts in the history of mankind, and the other the worst floods". Recently I joined a second cult called "it's only going to get worse". So what the heck, we've got money and time for expensive solutions that take forever to finish.
Nothing happening today, extrapolated out to 20 years with the most severe climate models, will be severe enough to cause the "end of the world". Anybody who's telling you we'll have total societal collapse by 2042 is out of touch with reality. The only way for things to go that badly that fast is for Earth to be hit by something big from space, but that is very unlikely to happen in any given 20 year period.