International afforestation
This guide to how many hectares of trees have been planted in recent decades looks encouraging. Obviously the planet still needs massively more to be planted, but it's a start....
https://www.carbonbrief.org/mapped-where-afforestation-is-taking-place-around-the-world
https://www.carbonbrief.org/mapped-where-afforestation-is-taking-place-around-the-world
