Seas and oceans

Water may flow in a thousand channels, but it all returns to the sea.
an African proverb


When viewed from space, the dominant colour of the Earth is blue. Often called the Blue Planet, more than 70 percent of its surface is covered by oceans and seas. With 97 percent of the world's water, it is clear why seas and oceans play such a key role in maintaining the Earth's natural balance.

Role of seas and oceans 

The marine environment 

Human impact 

European seas 

Our common responsibility 

Farmers and algae