But that's the thing right, "we" is the human population. If the US logging industry plants as much trees as it removes, then it doesn't really really matter if the global rain forests are being slashed and burned for agricultural reasons. Not to mention the massive amounts of forest fires we can expect due to increased heat and drought, which we have absolutely no idea how to deal with. It truly is a global problem. Great Green Wall is definitely a good thing! Throw in some heliostat solar (molten salt) powered desalination, and massive amounts of desert could be "greened" (good for people, economy and climate!)