You, me and 50 generations down the road.
Sorry to be this crude but the psychosis is getting crazy, well into the lunacy territory.
I get the religious-like impetous of being part of something bigger than themselves, but equally stimulating challanges in global health abound and they have the added benefit of being material to the lifespan and quality of life of basically everybody.
Finally to people who want to change global climate, talking about 1.5C , 2C like they are deciding how they want their beard to be trimmed. Well I must ask them : Have you tried changing your cholesterol first?
Besides being the thing that would get you in the end, it also proves to be one of the many steps on the way to super ambitious goals.
As the saying goes, you gotta walk before you can run.
If you can't change your cholesterol , you'll hardly be able to change the global climate