| http://www.w3.org/ns/prov#value | - We are not going to say we are green [or] say we are environmentally friendly without having the data and facts to back it up, she added.Washington-based VSI, through collaboration with environmental consulting firm Sustainable Solutions Corp. of Royersford, Pa., said it collected its data from several sources, including published studies and manufacturers.Much of the data came from life-cycle analy
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