For a layperson who is not a chemist, one of the questions is on whether, despite or because of CEPA and indeed our increasing awareness of these highly dangerous substances, one can actually say we are progressively reducing those emissions in North America. I take the representative list that Mr. Stack pointed out on DDT, PCBs, dioxins, furans, and so on. Whether we have virtual elimination or not, can one say for the worst of the worst that over a period of time there has been a progressive reduction of these things? Is that in any way connected to CEPA or to other matters? Is it true, and what is the cause of it?
I invite anyone to answer. Mr. Lloyd.