Nordenman: NATO member navies need to get familiar again with operating in the broader North Atlantic.
The last two decades have seen those navies primarily operate in places such as the Mediterranean, the [Persian] Gulf, and Indian Ocean. Those are very different domains in comparison to the Atlantic. And while the far North Atlantic is warming, it is not a hospitable place. It still remains very remote.
In terms of climate change, there are, for example, indications that warmer waters are changing the patterns of sound propagation in the far North Atlantic, which means that they must be measured and catalogued anew in order to conduct effective anti-submarine warfare.