Here's that post I deleted. I hadn't realised that the drawing had to depict 'real' technologies. oops.

Here's the original blurb I wrote to accompany the drawing:

Mountain Top Removal Mining is a method of mining being used in the Appalachian Mountains the literally blows up the tops of mountains to get at the seams of coal within rather than digging into the side.

What if in the future, when we're feeling regretful for all the damage we've caused, we decide to reconstruct the mountainscape as it once was?

Instead of piling rock and dirt on top of the mountains, we could use it as an opportunity to aid the pre existing communities in that area that had been affected by the mining by making green houses in the same topography as the mountain was.

These giant geodesic structures would first serve as a nursery for the indigenous hardwood trees and smaller plant life of that area, which they're presently having trouble regrowing because wildlife eat the seedlings.

When the trees are too big to be munched, kinetic powered machines that are half helicopter, half claw like those machines in arcades lift the trees out and transport them to the spot where they're to be replanted.

Once enough trees are replanted the structures could be used as community greenhouses, enabling the local communities to work together to grow food to sustain themselves.

Those purple pyramids are factories. Blowing up the top of a mountain produces a lot of rubble and waste which is dumped into the valleys, blocking up the waterways. To reclaim the waterways that have been blocked, these would be temporary brick making factories run by the community to use on their own building projects. The material is quarried from the stone that wasn't meant to be there in the first place.