I keep rambling about global warming, and how it's slowly ruining our planet. Now we've been given another freaky warning: the Arctic is going to melt. Completely. It's reported everywhere, find it on the
NYT, the
Independent, even
Fox News admitted to it. If you want the first hand report, go
here.
Now, I have a confession to make.
I
Can't
Wait.
Seriously.
I know this is terrible for a thousand good reasons, from the polar bears losing their homes to the rising of the oceans thingy.
But from an International Law point of view, it's absolutely fascinating.

Look at a map from a North Pole point of view.
All the straits you don't see when you look at a normal planisphere are available.
Canada has a bunch of little islands (well, not so little, but that's not the point here).
So far, the sea between these islands has always been frozen. Very few people have tried crossing it with ice-breakers, and even fewer have survived the experience.
However, if these places become ice-free, we'll be facing a lot of problems.
This will open a route for commerce that has never been available before. It will create new choke points, and new straits will have to be regulated.
So far, the main choke points in the world are the Panama Canal, Gibraltar Strait, Suez Canal and Malacca Strait.
The melting of the ice would make the Bering Strait (between Alaska and Russia) a major choke point.
Choke points are essential strategically. Gibraltar is currently controlled by Britain, which is contested by Spain and Morocco. Suez is controlled by Egypt, but was created by France and Britain, and those two fought a lot before giving it up. Malacca isn't really controlled by anyone, so it's infested with pirates. Panama is controlled by... Panama, with a lot of lobbying from the US.
Using the Bering Strait would mean opening a new era on commerce. The Strait is too wide to be really controlled by anyone (the territorial sea is limited to a maximum of 12 marine miles), but you can be sure that both the US and Russia will make sure pirates don't use it as a new area of profit. Since this would be the first time both the US and Russia have the means geographically to control a choke point, they also could start contesting the 12 miles law.
The 12 miles law is actually a custom much appreciated by the States. The general idea is that any State is free to create a territorial sea of a maximum of 12 miles from the lowest tide line, in which it can use its power of sovereign state as if it was land. The only exception to this is the "peaceful transit" rule that states that any ship can go through the territorial sea peacefully, without stopping, at a fast speed.
This is a written in the Montego Bay Convention of Law of the Sea, which is unfortunately not ratified by the US (and I'm not sure about Russia).
They have to follow the rule, though, since it is also a custom, which is in International Law, the first source of law, and has to be followed by everyone.
The problem with custom, though, is that it's created by the States themselves, according to what they think they have to do and what they do. So, if both US and Russia start behaving differently, we might have a change in Law of the Sea.
Second thing that is fascinating is how Canada will react.
All the islands on the north of the country are currently frozen, and no one has even contested Canada's sovereignty over the ice in between these islands, since there isn't much you can do with it anyway.
However, these too could become a route for commerce, as well as fishing areas (when fish find their way over there anyway).
Many possibilities:
1) The islands are considered to close to one antoher for the sea in between to be international. Canada therefore gets complete sovereignty by having them considered part of the territory, as they would for closed bays etc.
2) The islands are too far apart and the sea in between becomes international sea, according to Montego Bay. However, most of these islands are less than 400 marine miles apart, therefore Canada can create an Exclusive Economic Zone, and therefore swaps the fisheries rights, and the exploitation of all the oil that can be lying under there.
3) Almost anything goes: Montego Bay could be questioned if the situation changes completely. Customs change according to times, and by 2040, many things on this planet will have changed.
I
Can't
Wait.