The Earth has one big ocean
with many features
Currents, gyres and thermohaline circulation
The ocean and life in the ocean
shape the features of the Earth
Ring of Fire, sea level, and the intertidal zone
The ocean makes Earth habitable
Prochlorococcus, nutrients, Posidonia oceanica,
seagrass meadow
The ocean supports a great diversity
of life and ecosystems
Soft corals, gorgonian forest
The image in the header is also the cover image of the book. This image was taken by the author in the Marine Protected Area of the Cape of Milazzo. On the left is a rocky seafloor cliff that rises up to a small island called "Portella" that is just offshore of the cape. This area has strong currents and tons of biodiversity! It is one of the author's favorite places to swim.