Why Do Oceans Turn Green in Summer?

The ocean turns green in summer because tiny plants called phytoplankton grow a lot. These little plants are like the ocean’s food chain, they help fish and other sea animals live. When it gets warm, more phytoplankton grow, and that makes the water look green instead of blue, just like how a pond turns green when algae bloom.

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Examples

  1. A lake turns green when algae grow a lot
  2. The ocean can look like tea when it’s full of tiny sea plants
  3. Sometimes the water near the shore becomes bright green because of phytoplankton

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