Witnesses, thank you for being here.
Mr. Boyd, thank you for being here again. I do have a question for you.
You've suggested that we need nationally binding air quality standards, but it's my understanding from the World Health Organization that Canada's air quality across the country is considered among the very best in the world, up there with Australia and some of the Nordic countries. Certainly there's much more that needs to be done, but we do rank quite high in the world for the quality of our air. You pointed to Sarnia. That's probably our worst case, but many parts of the country have top-notch air quality, so I'm wondering, why are you proposing to change a system that right now already develops among the best air quality regimes in the world?