The U.S. Green Building Council announced updates to the primary version of the LEED green building certification program, LEED v4, to more directly address carbon emissions and climate change. With the change, building design and construction and Interior design and construction projects will be able to demonstrate improvement in energy performance with LEED v4.1’s metric of energy cost or greenhouse gas emissions in addition to LEED v4’s original source energy metric. For the last nine years, LEED v4 has been the primary and balloted version of LEED green building certification. However, its guidelines on reducing energy demand focused first on … Read more