I guess we know more than we used to and not as much as we want to. The water management framework actually focuses on the part of the lower Athabasca River where most of the development is right now, but we know that in the future we'll have to expand that knowledge into the greater reaches of the river.
There's a lot to be learned yet, and we're beginning this work. It's a model that we've developed. The model needs to be refined, and that is best done with data that's collected over time. DFO has a lot of scientists working on this particular issue, and our focus is on the instream flow needs as compared to the volume questions.