To answer your question, I can do it in two ways. One is that I think the science has come a long way in the last 20 years, and that's important. But more importantly, waste itself is a relatively clean product as we collect it off the street. I'm not talking about the industrial waste from very exotic metals manufacturing processes and stuff like that, but I do know from when we were trying to do a little small project with a cement company in Mississauga, and I did a lot of background work on emissions, that waste, properly prepared and treated, can be as clean or cleaner than coal. As you go through the science, it comes back to convincing the people, bringing the people into the process early, and teaching them what you know. You're never going to win over 100% of the people, but when you look at it it's quite an accomplishment.
Our incinerator, our EFW plant, energy-from-waste plant, in Brampton, was 20 years-plus in operation and never really had any major issues. There were some minor things like the more compact fluorescent light bulbs they get out there, the more chances of getting mercury into the airstream. It's a very volatile heavy metal. It will evaporate in the high heat fairly easily, but you can treat that.