How Is Upwelling Bad

In fact, excessive upwelling boosts ocean acidity in a way that directly threatens shell-forming creatures such as pteropods (free-swimming sea snails and slugs) and many more animals affected by low water-oxygen levels.

Is upwelling good or bad?

Upwelling is when cold, deep water rises toward the surface. This process brings nutrients that are found deeper in the ocean to the surface, which is often nutrient poor.

What are the causes and effects of upwelling?

Upwelling is an oceanic process in which cold water from the deep rises toward the surface of the ocean. It is caused by strong winds and the rotation of the Earth which moves warmer surface waters offshore allowing the cold, nutrient rich water to rush up.