The interesting part of this article to me was the part that discussed the anthropologist's findings, towards the end of the article. It confirms what I've seen anecdotally as well--the men are mostly ambivalent, some slightly optimistic, and the women are slightly anxious. It's a big project, but the timeframe of multiple years greatly reduces the stress on people. The businesses are changing plans slowly to accommodate, as are government offices and government-owned housing authorities, but there is no rush.
I've already seen a bit of the effect on my emotions--the first time I traveled here, I got on and off at the old train station, which is now on its way to demolition. Physical places that hold memories are for me a sort of safety, and seeing them go is slightly painful. It would be hard, I imagine, to watch my parent's home be destroyed.
Overall, the move makes me confident of mankind's ability to cope with climate change. Kiruna is only a small town, and it's moving only a short ways away, but it is a massive undertaking that requires a lot of money and (perhaps more difficultly) a lot of cooperation. If Kiruna can do it, larger towns can too, at least when faced with an obvious existential threat.