In fact we no longer use chlorine gas for bleaching. Madam Broten did make a reference to this, that we have virtually eliminated dioxins and furans in our effluents. We did this was by significantly shifting the technology within our pulp and paper mills.
In addition to eliminating dioxins and furans, we've reduced AOX by more than 90% over that same timeframe. Certainly this was precipitated by regulatory drives, but nonetheless we've made the significant investment of billions of dollars to do so.