We have taken the same approach for all sectors, for the oil sands as well as all others that you see in the different slides at the end of the deck. The approach has been to benchmark to the best in the world and to use the projection to 2015. So for all sectors we are taking growth into account, projected right now to 2015.
In the oil sands sector, what we know is that if we were to do nothing, there would be a substantial increase of those different pollutants. In applying the benchmarked measure, what we're doing is we're lowering substantially what we will get as a result of the oil sands growth.
Yes, with the technologies that exist right now we don't have any knowledge that we could abate the VOCs below the number we currently have.