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China Builds Experimental 33-Story Air Purification Tower That Turns Smog Into Clean Air
So this is basically a solar energy updraft tower that cleans the air at the same. Neat.
@Joshua
1. I don't think plants are involved at all. At the bottom are "glasshouses" (for heating up the air) not "greenhouses".
2. If I'm understanding your last sentence correctly, carbon capture and smog mitigation/filtration are two different things.
My understanding is that this is a basically a particulate filter, not a carbon removal system.
So little info. So many questions...
How it works: the chimney effect. It is a giant chimney with a bunch of plants and filters built in a natural heat gradient created by heating the gas below so it will rise on its own. Not much more than that and this is some amazing appropriate technology for what could be a ridiculous waste of energy like some carbon capture systems.