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Coastline
& Ocean
The ocean is a vast expanse of salt water that separates the continents and covers 70% of the Earth's surface. Thanks to the plant elements in the plankton that drift across its surface, the ocean captures 30% of greenhouse gas emissions and emits 50% of the oxygen we breathe - one in two breaths! This has earned it the nickname "the lungs of the Earth".
And yet, from the open sea to the coastal zone, from sandy to rocky seabeds, from seagrass beds to coral reefs, the ocean is home to an incredible diversity of environments, and it would be a mistake to think of it as a huge, homogeneous expanse of water.
The coastline is the strip of land between land and sea. It's an area rich in life that has adapted to hybrid and changing conditions, both terrestrial and semi-aquatic, where the tide constantly covers and uncovers part of the environment.
