I found this post by dave b and the calculations contained therein to be interesting. Clearly, weather patterns are changing but they aren’t changing in a globally consistent manner.

In Alaska and the northern hemisphere in general; it’s hard to believe it’s all global warming. I talked to a fisherman that fishes off of Sitka, seeing 60°F water temperatures when they are below 40°F here in the Puget Sound. I suspect under water volcanic activity.

Heat doesn’t flow from colder to hotter, there has to be a heat source local to that area under water.