@pthane @futurebird
> By 2100 the Arctic could be the new Mediterranean.

In the first approximation, it cannot. The most catastrophic scenarios are warming by 4 or 5 degrees, and while such a rapid warming will totally destroy or decimate ecosystems, Greenland is nowhere near being just 4 or 5 degrees colder than Mediterranean.

In the second approximation, it can but not in the way you're implying. One of the possible consequences of global warming is Gulfstream stopping, which means Europe freezing to temperatures warranted by its latitude (e.g. the Azure coast is on the similar latitude to Halifax, Nova Scotia), even as the planet overall is getting hotter and less inhabitable.
But nobody knows what exactly the local consequences are going to be, so it makes no sense to plan for them and expect some good consequences in some specific regions. The only thing we know for sure is that the planet is rapidly getting hotter, and that the rapid change results in large amounts of extraordinary catastrophic local weather events and in changes of the current weather patterns.