You have to keep planting them. And you have to watch that they are developing ecosystems to encourage more carbon sequestration into the ecosystem. And you hav

You have to keep planting them. And you have to watch that they are developing ecosystems to encourage more carbon sequestration into the ecosystem. And you have to keep it up, and water them, and fight attempts to strip the plot and turn it back into monoculture farmland, and you probably need to make sure no fires happen in the first couple hundred years until you're ok with natural fires dumping carbon back into the atmosphere which also entails some kind of light controlled burn or very targeted application of intense heat for any species that rely on fires to reproduce. I'm totally for it, I love having trees everywhere, especially as I walk to most of my destinations.