Maybe I could ask my colleague Jim McKenzie, who was the lead principal on this, to come to the table.
There are several reasons. The demand for scientific information has increased at Environment Canada. The level of complex questions actually needing answers has also increased. That goes from assessing toxic substances, for which Canada is a world leader, to looking at more discretionary actions on which scientific analysis is based, including assessment of smog, ground-level ozone, stratospheric ozone, climate change and others. So the number of files that Environment Canada has to deal with has increased.
Mr. McKenzie.