Oceans are the primary source of oxygen for the planet, responsible for 70% of all the oxygen we breathe.
No matter how far mankind lives from the seas, it is still important to protect them.
The earth's oceans contain a wide variety of life, but all of them have their roots in coral reefs. Imagine a forest without trees, and all you'll have is bare land without life.
Coral reefs play an important role in marine life, and the importance of coral ecosystems is vital to all life.