Cut emissions with a whitewash
September 11th 2008 06:31
:
whitewash..
A new study, which is currently in press at the journal Climate Change, calculates that if major cities worldwide painted gave roofs a coat of whitewash, it could cut carbon dioxide emissions by a massive 44 gigatonnes...that's more than we emit in total in a year...
The math is just confirming something we all know - white reflects sunlight. That means that a home with a white roof is likely to use less air conditioning as the roof reflects solar radiation.
Just by painting one home with a white roof is equivalent to sucking 10 tonnes of good old cee-oh-two out of the air.
So - what are you waiting for - get the whitewash out! Only one proviso - you have to keep your roof sparkling like Tom Cruises' teeth in order for it to be effective...but just think of it as additional exercise!
The math is just confirming something we all know - white reflects sunlight. That means that a home with a white roof is likely to use less air conditioning as the roof reflects solar radiation.
Just by painting one home with a white roof is equivalent to sucking 10 tonnes of good old cee-oh-two out of the air.
So - what are you waiting for - get the whitewash out! Only one proviso - you have to keep your roof sparkling like Tom Cruises' teeth in order for it to be effective...but just think of it as additional exercise!
White roof to save the world...
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