Couild you pklease explain the salinity of oceans and the slat circulation from surface to bottom and up?

Question

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Answer 1

As warmer surface water evaporates, the relative salinity increases (a loss of water means higher salinity).  This relatively denser water sinks.  As it sinks, it also cools, further condensing it, and causing it to sink more rapidly.  This cold, highly salinated water then travels along the bottom of the ocean, catching under-currents that actually drive the "oceanic thermal conveyor system"...

As this water travels, it mixes with the prevailing currents, normalizes, and then begins to once again ascend as more dense water replaces it.

This constant distribution of heat and salinity are what drive the ocean currents, weather patterns, polar mass, climate changes, and atmospheric intensity.