Houses in the island

Dr Chu said those who do not find white roofs pleasing could invest in 'cool colours' - pastel shades which also absorb less heat.
He added: 'If all vehicles were light-coloured, there could be considerable savings because then you could downsize air conditioning ... a considerable reduction in energy.
'If you look at all the buildings and make all the roofs white, and if you make the pavement a more concrete type of colour rather than a black type of colour, and you do this uniformly, it's the equivalent of reducing the carbon emissions due to all the cars in the world by 11 years.'