Artificial Trees

[Orstio]

Not Xmas trees!   

http://www.americanenergyindependence.com/recycleco2.html

Technology is available for developing large “artificial trees” to remove carbon dioxide directly from air. These artificial trees can be designed to remove a volume of CO2 equal to the total tailpipe CO2 emissions of a given region, resulting in a zero net balance of CO2 in the atmosphere; effectively making the hydrocarbon burning cars and trucks in the region equal to zero-emissions vehicles.

[Astronuc]

Synthetic gasoline made from recycled CO₂ would be renewable because the CO₂ tailpipe emissions from hydrocarbon burning engines would be drawn out of the atmosphere by artificial trees and chemically recycled back into synthetic gasoline.

That would be ideal.

I wonder if they are 'solar powered'?