Thank you very much, Mr. Chair.
The good news is that given the colour of uniform I'm wearing and having sailed up there, I'm probably the right person to answer. Thanks very much for the question.
I think perspective, again, is really key. When we talk about the Arctic in terms of the waterways opening up, there is a significant difference between the Russian northern sea route in the Canadian Arctic and what we assume is the Northwest Passage, obviously given the rotation of the earth and how the ice packs in.
You're absolutely right: Navigation in the Arctic is exceptionally dangerous. It is not through the routes you would think it would be, going across 75 north. It's actually going to go down through the islands on the north slope of Canada, so it's shallow waters and rocky and with sandbars. Navigation is constrained.
For the committee to understand, we have good domain awareness in the north. We know all the ships passing through. At this time, in terms of numbers—so folks have an expectation—there are only about 150 transits in the north a year. We are aware of all those vessels going through. A lot of it has to do with internal resupply. Many of our communities are resupplied internally from vessels. In terms of that domain awareness, we're quite comfortable.
With that said, as you articulated, as we are seeing the climate change, it's opening up slightly earlier. Depending upon the ice year, there may be more or fewer vessels going through. This is a challenge not only, I would say, from a search and rescue perspective but also a perspective of enforcement of environmental regulations and fisheries regulations and the things that we hold dear in Canada.
Your question is bang on. There are lots of challenges associated with this, and I'm happy to follow up if you have a further question.