Persian Gulf has 20% more salt in water because of the humans which are throwing the oversalinated waste back into the sea. Dehidrated salt may be a big deal for some areas because of no waste into input.
The brine is waste, and the dehydrated salt is also waste. Maybe dry waste is better, but it's still waste.
>Persian Gulf has 20% more salt in water because of the humans
I would like to read more about this from an authoritative source.