And as soon as the wind stops and the sun gets obscured by clouds or the earth, the bubbles stop, and off goes the plastic :) Apart from that, I'd think that th

And as soon as the wind stops and the sun gets obscured by clouds or the earth, the bubbles stop, and off goes the plastic :) Apart from that, I'd think that the amount of energy required to move the air down is massive. Also, not sure wear and tear on the (plastic) structure can be handled in a sensible manner over the long-term...