Reforestastion in order to bring back something similar to native forest, and to draw down carbon dioxide levers, is actually rather tricky. You can't plant a monosystem of, say, pine tries, especially if they are not native.
One cool approach is to take acorns from an anchient native oak tree as one of 27+ natives in a reforestation areas. Check out this detailed article on BBC, 1,000-year-old oaks used to create 'super forest', by Hellen Briggs.
