I said Port Philipp bay to get a response - but think of it this way
The oceans are all connected and if every country in the world installed massive desal plants , do you think the oceans could maybe get a bit saltier - even if only slightly?
What impact could that have on fish stocks?
Ever drunk bore water that is 200ppm, then 600ppm, 900ppm and 1500ppm. Try it sometime.
I wish you hadn't written this. A bit of research and abstract reasoning would have shown you why.
First, this is a cyclic process, we desalinate, use and then return to the oceans. Nothing new in this.
Now if we take account of the ocean volume (1 300 000 000 cubic kilometers) and deduct the amount of lets say all of Australias potential desal plants - lets say 1000 giga litres (Melb is looking at 150gl). That equates to 1 teralitre or 1 cubic kilometer of water. So (1 / 1 300 000 000) x 100 gives what percent??? 7.69 x 10 to the power of -8 which I think works out to:
0.000 000 076 9 %
I thnk the melt water from global warming will offset this.
A lot of scare mongering goes on and with the lack of figures, it is easy to be misled by people with alternate agendas.
edit: one too many zeros I think so removed one.