However, I didn't know about the column he's making as part of the artists taking the lead initiative by the arts council (part of the 2012 insanity).
The project is a big splash by the arts council. Some of the projects being undertaken are slightly interesting but the Anthony Mccall piece, will be pretty incredible.
A spinning column of cloud will rise from Wirral Waters in Merseyside...
.... it is based on the principle of convection, where warm moist air is displaced by denser air. This occurs constantly in the natural world as thermals, and more visibly, in the form of 'dust devils' and water spouts.
It will be several kilometers tall and visible for at least 100km.
(from the press release)
The column will be 20 meters across. Mccall has been working on it with an inventor for 5 years.
I saw a scale model of this in action and it's beautiful. It looks like a constantly building and breaking double helix. The weather will affect how it appears each day, so potentially no two viewings will be the same. Fabulous.