CleanFiber wants to turn millions of tons of cardboard boxes into insulation

…Cardboard would seem like a perfect, paper-based solution to the insulation industry’s short supply, except there’s one problem: Corrugated boxes are riddled with contaminants like plastic tape, shipping labels and even metal staples. Transforming it into insulation is far more challenging than newsprint ever was. Yet one startup, CleanFiber, anticipated the shift and has been working on the problem for years. Read more >>