It makes the water mode dense, the opposite of this<p><a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Effects_of_global_warming_on_oceans" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Effects_of_global_warming_on_o...</a>