Even if Global Warming turns out to be bogus, I really, really like this idea!
"Centred around a lake which collects and then purifies rain water, the Lilypad will drift around the world following the ocean currents and streams.
It will be accessed by three marinas and will also feature three 'mountains' to offer the inhabitants a change of scenery.
Power will be provided through a series of renewable energy sources including solar, thermal, wind energy, hydraulic and a tidal power station.
The city will actually produce much more energy than it consumes and be entirely 'zero-emission' as all the carbon-dioxide and the waste will be recycled.
Mr Callebaut added: 'It's an amphibious city without any roads or any cars.
'The whole city is covered by plants housed in suspended gardens. The goal is to create a harmonious coexistence of humans and nature."