The Sustainability Factor and Will Winter Ever End?
It's entirely possible the first third of April sees an average nighttime temperature lower than that of January. Toes shouldn't be cold in winter boots, tripod heads should be fluid and smooth, and one battery should be enough. Perhaps the only evidence of spring these days is the snow evaporating off the ice roads, giving way to impromptu dance parties - from guests much more talented than me, tripod feet that won't stay put, and reflections of the aurora in the ice.
If not for the cold, perhaps the only thing keeping us from going dusk right through to dawn these nights is that I have to find some personal sustainability to be awake for tour the next nights too.