Sea salt cures

It is nice to know that the salt water on our Earth is a massive cleansing fluid. It dilutes much of the toxic waste that flow down our streams and rivers. In a concentrated form we eat it (table salt) or use it to preserve our food. In a slightly diluted stage we float on it (The Great Salt Lake in Utah) or use it to treat eczema. Sea mammals that have wounds are more quickly healed by their watery environment than a similar land mammal would. Without our oceans to keep this planet moist and cool enough for us to survive where would we be? Non-existent that is where.