Description

Why the ocean matters

Photo: Jens Wikström / Ocean Image Bank

A healthy ocean means a healthy planet

The ocean connects us all — in every breath we take and every drop we drink. It gives us oxygen, food, medicine, and meaning. It regulates our climate and sustains all life on Earth.  

But it's under serious threat from climate change, pollution, and habitat destruction.  

This guide is here to help you make sense of the challenges — and show how even small actions can create big change.

Top 10 ocean facts everyone should know

Bullet point - Top 10 ocean facts

The ocean covers over 70% of Earth’s surface — yet most of it remains unmapped.

Bullet point - Top 10 ocean facts

It holds 96.5% of all water on the planet and is a major driver of rainfall.

Bullet point - Top 10 ocean facts

It produces around 70% of the oxygen we breathe — every second breath comes from the sea.

Bullet point - Top 10 ocean facts

Over 3 billion people depend on the ocean for food, jobs, medicine, and transport.

Bullet point - Top 10 ocean facts

It’s home to about 2 million species, with many still undiscovered.

Bullet point - Top 10 ocean facts

It absorbs over a quarter of human-induced carbon emissions.

Bullet point - Top 10 ocean facts

It captures about 90% of the excess heat trapped by greenhouse gases.

Bullet point - Top 10 ocean facts

It contains 37 out of the 50 critical minerals.

Bullet point - Top 10 ocean facts

Ocean currents move over 100 times more water than all rivers combined.

Bullet point - Top 10 ocean facts

Coastal ecosystems help reduce floods, store carbon, and support communities.

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Small actions create ripples. Ripples grow into waves. And waves can shape the world.

Photo: Caro

Be inspired

Ocean actions in your own words

Quotes from Ocean Action stories
I went to an event where there was a WWF stand and decided to adopt a sea turtle! recently went to the Plymouth aquarium with my 2 daughters and they loved the marine animals, in particular an octopus called Roger...who is actually a she ;-)
Quotes from Ocean Action stories
Caro
UK

Photo: Renata Romeo / Ocean Image Bank

Be inspired

Ocean actions in your own words

Quotes from Ocean Action stories
After exploring the vibrant reefs of Hawaii and building a deep appreciation for the ocean from a young age, I felt called to deepen my connection with and understanding of marine ecosystems. I found myself particularly drawn to coral—its beauty, complexity, and vulnerability captivated me. This passion led me to intern at the Oklahoma Aquarium, where I assisted the Director of Research with dissertation work focused on coral fluorescence and coral bleaching.
Quotes from Ocean Action stories
Tarah
USA

Photo: Guy

Be inspired

Ocean actions in your own words

Quotes from Ocean Action stories
A combination of The Blue Planet and Seaspiracy persuaded me to cut out all but line-caught fish and all but absolutely unavoidable plastic. And I am fully aware that's nowhere near enough...
Quotes from Ocean Action stories
Guy
UK

Photo: Srikanth Mannepuri / Ocean Image Bank / Mangrove Photography Awards

Be inspired

Ocean actions in your own words

Quotes from Ocean Action stories
Interning for Oregon Sea Grant, helping small coastal communities develop climate action plans
Quotes from Ocean Action stories
Sia
USA

Photo: Cat To

Be inspired

Ocean actions in your own words

Quotes from Ocean Action stories
I have always been sensitive to marine life and the ocean, but after watching SeaSpiracy in 2023, I stopped eating fish ! When at the beach, I use "reef-safe" products and I pick up cigarette butts and other trash that I find...
Quotes from Ocean Action stories
Morgane
Croatia
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Photo: Asad Photo / Pexels

What you can do

Feeling overwhelmed? You’re not alone.

But learning is the first step toward action. From making informed choices to speaking up, there are powerful ways we can all help the ocean.

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Photo: Fabrice Dudenhofer / Ocean Image Bank
Description

Photos:
Top 10 ocean facts: Jeff Hester / Ocean Image Bank
What is harming the ocean?: The Ocean Agency / Ocean Image Bank
Myth busters: Cinzia Osele Bismarck / Ocean Image Bank
Ocean vocabulary: Ron Watkins / Ocean Image Bank