>>21417567heres another HUGE example, a planetary tornado, in the form of a rotating sustained Birkeland current, acting continuously over the same area in Earth's north polar region, scouring the land underneath, has left an indelible scar.
As it happens, small as it is compared to the Pacific and Atlantic, the Arctic Ocean contains four depressions of oceanic depth which, unlike other oceans, hold large volumes of sediment.
