I have to be careful with that answer.
If you were to look at what's happening up north in the summer...the ice, for example, used to be open in M'Clintock Channel four weeks of the year. Now it's open six weeks of the year. In the time we've been measuring it, that is a substantial difference. The average temperature in the north is several degrees higher. There are parameters that indicate that change is taking place.
Whether this is global warming in the long term, that's a big step to take. There are definitely changes taking place in the north, and if you don't react to them, you can consider them a disaster or you can consider them an opportunity. If you consider them an opportunity, you need to react to and mitigate them.
That's the approach I would take if I were asked.