.......You can't plan trees as they will only fall over until the ground stabilizes...
......All that land taken up by permafrost can't be used until the ice melts and it's ground level is half of what the depth of the permafrost was, from like 50 feet to 2500 feet.
Well, the point is that trees are growing and they actually need to 'eliminate' them in permafrost areas. They never used to grow there due to the climate and also the animals killing them and shrubs off. The darker plant growth of those sorts of plants helps warm the ground. That melts the permafrost, then the methane is released.
Past that, the land isn't needed (by man). It is needed by earth however to help stabilize the climate. Consider this image (I've been using a lot of this for what I'm writing, so I'm just now learning, not an expert).
This is how the air circulates around the globe in distinct bands. Those bands will shift slightly and expand with the seasons. You'll also notice that they lie along the various zones (tropical, sub-tropical, temperate and frigid zones). As the atmosphere is affected by climate change they have noticed an alarming trend. Bands of clouds are beginning to shift north and south out of the various zones, becoming more frequent and dense in those closer to the poles.
Cloud cover holds in heat, that warms the temperate farther north and frigid areas. In a sense, the Hadley Cells are growing, and the mid-latitude cells and polar cells are shrinking but becoming more dense with cloud cover. Naturally, that also affects ocean currents, etc., etc., and we start getting an unstoppable chain reaction. Permafrost melts, more carbon. Plants become stressed, so they stop taking in CO2 and instead expel it. The northern seas which work like a big radiator cooling off the planet, shift their currents, in cold areas due to the cell changes and cloud cover because they're darker absorb even more heat then on land.
Plants (like trees) grow where they didn't because of the above making previously light colored grasslands darker, absorbing even more heat... melting more permafrost... changing the latitude of the cells more... melting more snow and ice... now dark water heats more... and you can see how it begins perpetuating its own self destructive cycle.
So the idea to stave off this rapid change is to essentially rein back in the permafrost and snow/ice melt on land and sea, then hopefully it gives us more time, or in the best case, once stabilized it begins to rebuild.
Land we got...
K2