Wow, what a horrible December with evacuations in Vanuatu from raising ocean levels; the report on Atlantic Circulation, and now this.
At any rate, what is clear is that the Greenland icesheet melting very urgently needs to be understood. In particular in contemplating tar-sands, coal-to-liquids, etc, as solutions to peak oil, we need to understand what gamble with the ice sheet we are making, exactly.
Seems like alternative sources of oil is not enough, we need enviormentally friendly renewable energy. Troubling, indeed.

And why would they be evacuating Vanuatu, when the average sea level there has been below nominal for the past 3 years?

Erosion. And wind piling effect. Check their history, this is not their first evacuation in the last 100 years.