The majority of our planet is covered by seas and oceans. It is obvious that the oceans are not only beautiful but essential to our survival.
The oceans are home to countless species of marine life, providing us with food. They also play a huge role in regulating the global climate - including, very importantly, temperatures.
But, unfortunately, we are destroying the oceans and all the life in them. We fish the oceans so heavily that many species of fish are becoming endangered. What is more, many fishing methods are destroying coral reefs and marine life we don't even eat. Meanwhile, waste from factories and cites flow into the oceans, seriously polluting them.
Our oceans are hugely important to us. They are unique in the solar system. We should do everything we can to protect and treasure them.
Gabriella Wong Yuet-ching, Tsuen Wan Public Ho Chuen Yiu Memorial College
From the Editor