The true history of seven heavens and the eighth that it's the Earth

The paper publicized in Nature “ Western Arctic Ocean freshwater storage increased by wind-driven spin-up of the Beaufort Gyre ” (Katharine A. Giles, et al. 01/2012), authors talked about a great bulge with 8.000 Km3 of fresh water that is caching between ice and saline water. In the last years its size tends to grow, and the phenomenon is linked to climate change. The origin of fresh water is the water of the rivers that flow into Artic Sea and snow of ice layer thawed. This water doesn’t blend with the Artic water and its size has a fluctuated seasonal. Why exits a bulge fresh water and does it blend with Artic water? I can explain it. If you take fresh water and you put into salt, salt dissolves quickly; but if you take fresh and saline water and both put into glass slowly both liquids continue without blended, similar water and oil. This behavior is caused by different density of them also if we stir them water blended. In the sea happens the same but in surface there are win...