Thank you, and I'll ask Mr. Sloan to amplify my answer.
First, the honourable member is quite right, there is never enough information. There's always imperfect information. There are always areas for improvement in baseline data. But what we saw and particularly why we chose this region to look at cumulative environmental impacts was that you were able to see a pattern from 1999, 2004, 2005, 2006, and 2007 where there was exactly the same message that was repeated continually on basic gaps in information related, for example, to hydrological characteristics on the impacts of water withdraws and on impacts of contaminants on ground water and downstream.
So I think the magnitude of the data gaps, which the federal scientists had noted in five subsequent reports and which was repeated again in 2010, points to a pattern of significant gaps in areas.