In a climate collapsed world…Wingsofadove, you are correct that nobody would remember that it was there. As it is, most people alive now have never heard of it.
The thought of putting it on an island that far north would hopefully keep the starving hordes from eating the seeds in desperation but who will have boats to get there (if there were anybody left above hunter-gatherer knife & spear level of existence? No motors by then, no fossil fuel left to power one I would assume even if they knew about it.
I do understand why it was located so far north, though. Anything even close to the Equator is going to be uninhabitable so what would be the point of building it in the death zone? Reading the science I had my doubts about it being in so-called Permafrost but, until I saw these pictures, I had no idea that it was placed essentially on the freaking beach!!!
My immediate thought was; are you kidding me? The glaciers are melting, Greenland is melting, Antarctica is melting, thermal expansion of the ocean…so why would anybody be dumb enough to put something like this at an elevation that will drown the building under who-knows-how-many hundreds of feet of ocean? The beach and ocean is right there in the third (the tweet) picture!!
The entire project seems to be an essentially useless exercise other than as a ‘feel good’ action. I applaud the effort, though. At least they tried, yes?