This giant wall really sucks.
Created by Canadian company Carbon Engineering, this wall could be built to draw carbon dioxide straight out of the air and convert it into fuel. The research and engineering firm hope to build such walls where regrowth of trees simply isn’t possible.
As shown in the video below, air flows through the row of fans. They are connected to a carbon dioxide-rich solution, which absorbs carbon compounds out of the air. The solution is purified, with the carbon dioxide within it extracted, and then purified again for reuse.
Check out the video below from Carbon Engineering.
[H/T: Popular Mechanics]