27 Dec '14, 3pm

About 20% of a building's carbon footprint comes from materials. Measuring that isn't easy, says @edcmagazine:

When designing green buildings, architects, engineers and owners often pay quite a bit of attention to operational energy and greenhouse gas emissions. We find ourselves asking: How efficient is the HVAC system? Are the lights on motion sensors? Is there good natural light? Are we using renewable sources for energy? While these elements are certainly important, this strictly operational focus ignores the energy required to produce the materials in a structure—embodied energy—and the carbon associated with their manufacture, transport and installation prior to their use—their carbon footprint. To measure the full environmental footprint of buildings, it is necessary to account for the energy and carbon associated with materials before the building even opens. Thus, it becomes necessary to understand the manufacturing processes of construction materials. A challenge we find,...

Full article: http://www.edcmag.com/articles/95973-whyand-howto-conside...

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