At the end of the day it's about the flexibility to have emissions trading. Some of those companies are already voluntarily participating in both domestic emissions trading and international CDM purchases because either they have their own company corporate commitments to meet or they have provincial commitments to meet.
It's not that there's a yes or no answer to whether there should be emissions trading or not; it's about how we define those targets realistically and how we ensure those costs are not unreasonable, compared to what their competitors are paying in other countries.