Posts Tagged ‘simple solution’

White roofs will save more than $1 Trillion globally!

Posted Sunday, July 19th, 2009 by admin

Black is the most effective colour for trapping the sun’s heat, while white is the best at repelling it. Black pavement accounts for 40% of urban surfaces while roofs — typically covered with black or dark shingles –account for 20% to 25%.

For the full column see http://bit.ly/5MqZXt

Billions of kWhrs can be saved with motor efficiency on escalators

Posted Monday, July 6th, 2009 by admin

My latest column in the National Post this past Friday (July 3) focused on the billions of kilowatt hours than can be saved by improving the efficiency of escalators — with litlle or no investement.

Read the column at http://bit.ly/5Be86o

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A Crisis is a terrible thing to waste – Coming 2010

Jim Harris discusses the 4 concurrent challenges that nations are currently facing and provides a set of solutions in his new book A Crisis is a terrible thing to waste.

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