If we want to reverse global warming we will have to plant trees and manage these forests. And that is not easy.

Some data:

The mean survival rate computed on a sample of agroforestry private trees was 51% while on public trees it was 30%. In woodlots and forest plantations, private trees survived at 65% while the public ones survived at 40%.

On average, about half of trees planted in tropical and sub-tropical forest restoration efforts do not survive more than five years.

Tropical rain forests at some point can no longer sustain themselves either. It's delicate.