I think I will point to the predominantly state issues, because when it comes to straits, and choke points, and also the strive for resources, if that is going to be a future scenario, it will probably be state driven. So I think I can put the security question into two categories.
One is the resource issue. If energy is a scarce resource and the strive to get these resources is sufficiently high, it will create security tensions.
The other security issue will be the one I mentioned, about the maritime infrastructure, and the strait, the new choke points, and so on. Then, of course, there is a certain category that is not maybe addressing the five polar nations, but if the meltdown of the north or the polar ice were to increase water levels all over the world, you would also see new hotspots in other parts of the globe that will also have an effect on the whole world. For an area like Bangladesh, for example, if you have water rise of less than a metre, it would create devastating damages to low areas and could mean millions of migrants and all the security issues that are related to that. It would also argue for the erosion of deserts and things like that.
But the direct security issues for the five polar nations are the ones I've just mentioned.