Skidmore, Owings & Merrill has developed a structural system that uses timber to construct tall buildings as an environmentally friendlier alternative to steel and concrete. From: Towers of Steel? Look Again ; ;Related ArticlesAppeal of Timber High Rises WidensE.P.A. Rules on Emissions at Existing Coal Plants Might Give States LeewayArctic Ice Makes Comeback From Record Low, but Long-Term Decline May Continue ;
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