They are/were looking at making artificial robotic clouds. http://edition.cnn.com/2011/SPORT/03/25/qatar.flying.saucers/index.html http://edition.cnn.com/2011/

They are/were looking at making artificial robotic clouds. http://edition.cnn.com/2011/SPORT/03/25/qatar.flying.saucers/index.html http://edition.cnn.com/2011/SPORT/03/25/qatar.flying.saucers... > plans to develop giant artificial remotely controlled "clouds" made up of high-tech materials that will be positioned between the blistering sun and the still-to-be-built football stadiums in the Gulf emirate.