Hmm: So you're saying that if the average temperature in northwest Greenland becomes -24.9 C instead of -25 C, the people there will all be forced to move *toward* the equator?

Linguist on mission to save Inuit 'fossil language' disappearing with the ice | World news | The Guardian

Stephen Pax Leonard will soon swap the lawns, libraries and high tables of Cambridge University for three months of darkness, temperatures as low as -40C and hunting seals for food with a spear.
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"Climate change means they have around 10 or 15 years left," said Leonard. "Then they'll have to move south and in all probability move in to modern flats." If that happens, an entire language and culture is likely to disappear.
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Leonard, who is 36, will have to adapt to many things, not least the extreme temperatures. Although the average temperature is-25C, it can plummet to -40 or soar to zero in the summer.