Since the news reports say their vehicle was found burnt out and they assume the pair are attempting to travel on foot, then good luck to them. The elements will likely do them in. The terrain is muskeg and bush, lots of impassable areas account of water, bugs galore, little natural food other than perhaps berries, and it's been reported that polar bears sometimes travel to the area. IF they are found they won't likely be alive.
Adrian (and Beth)
We are all travellers in the wilderness of this world, and the best we can find in our travels is an honest friend.
Robert Louis Stevenson