The argument that the Arctic ice could melt and sea levels is a trap and should be avoided. Arctic ice is in the water and therefore already displacing water, so it would not raise sea levels if it melted. However, if the Arctic ice melted, then the glaciers on Greenland and Antarctica would also melt. These are land based and would raise the level of the ocean.
He is correct about the freezes. The ice melts in the summer and freezes in the winter. Henry Hudson could not sail around northern Canada if it was covered by ice. The climate change argument omits this fact, as well as many others. But the melt effect is correct, if misapplied to the Arctic ice. It’s much better to note that the ice melted because it was summer, and then to show images of the ice during the winter when the Arctic Ocean froze up again. This has the effect of showing that the climate change crowd is not just wrong, but hopelessly ignorant of things like summer and winter.
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The Arctic ice average less than one meter; Greenland’s ice cap around 3,000m; and Antarctica’s closer to 4500m.
That’s a bunch of Slurpees.