Jokodo
Veteran Member
"Supertankers" are the largest tankers, and the largest man-made mobile structures. They include very large and ultra-large crude carriers (VLCCs and ULCCs – see above) with capacities over 250,000 DWT. These ships can transport 2,000,000 barrels (320,000 m3) of oil/318,000 metric tons.
So that's about 17 supertankers of brine per week.
Most of the ocean is a barren desert where hardly any biomass is produced/accumulated. Large stretches of water are too poor in micronutrients to allow most algae to grow. This implies no zooplankton and fish either. The fertile areas are concentrated along the shores, especially near river deltas, due to coastal wash down, and in certain spots where upwelling (cold) water carries dissolved nutrients and aerosols (can you say aerosols in water?) from the sea floor. These dead zones start a few kilometres from the coast in many places. Dumping 17 supertankers there isn't really going to kill anything, and by the time it reaches more fertile waters it has mixed will.
At the cost of a few kilometres of pipeline.