Discharge of industrial wastewater causes all of the following except

Discharge of industrial wastewater does not directly change the climate, which sets it apart from the water-borne harms it does cause.

It does deplete dissolved oxygen, as the effluent's load consumes oxygen in the water.

It does destroy aquatic life through toxins and oxygen loss.

It does impair biological activity by poisoning the organisms that drive it.

Climate change is driven mainly by greenhouse gas emissions to the air, not by wastewater outfalls.

Treating effluent before discharge limits these aquatic damages.