It took 20 nobel prize winners...

[Cannon Shell]

to come up with this
http://www.telegraph.co.uk/earth/ear...ite-roofs.html

forgive me for finding this hard to believe


"If you look at all the buildings and if you make the roofs white and if you make the pavement more of a concrete type of colour rather than a black type of colour and if you do that uniformally, that would be the equivalent of... reducing the carbon emissions due to all the cars in the world by 11 years – just taking them off the road for 11 years," he said.