Projects like this are in desperate need of serious people to help them scale up. If even a small fraction of the people who see articles like this (or videos, or whatever) were to contribute some of their time and energy to the projects themselves, then the odds wouldn’t be so against them, and that little bit of progress would become reforestation of entire regions. The question isn’t whether it’s possible for a project like this to succeed; the question is whether there are enough people willing to make it happen.