Decarbonization, reduction of produce (spending less), trash collection and reduction, less plastics… and hoping for the best that mankind wont mess it up more til 2050 - then the following 100 years (after 2050) shouldn’t be so hell as it seems so now…
Unfortunately we as people cannot see our older ones so future planning is not so easy…
Guns and ammo was the conclusion how to prepare for the future - in the book “10 Billion” by Stephen Emmott.
It's pointless to look for solutions that's against human nature.
I’m pretty sure nonviolence is the way for the future. There is always someone with a bigger gun.