Sure.
Basically what Natural Resources Canada is doing with regard to the United Nations Convention on the Law of the Sea is defining the outer limit of the extended continental shelf in the Arctic and Atlantic oceans. That work basically involves geology. It involves expert geological resources that we're deploying in collaboration with Fisheries and Oceans and DFAIT, with a view to extending our continental shelf and for the claim we could have ultimately on resources under the seabed.
We've been working closely on that for a number of years now, and we have basically completed the scientific work; we've actually sent ships with various instrumentation to measure and to test, to try to assess, and to build a scientific case for the claim in terms of our continental shelf space. We are now at a stage where we will have to assemble that information to submit it in 2013 to UNCLOS. Therefore, the expenditures are going down because the bulk of the spending, sending the ships up there in the north, has basically been completed.