Common Seas.
Healthy Seas for Everyone.

We need the Ocean. We love the seas. But because they’re in trouble, we are too.

Common Seas exists to find, test and facilitate solutions to our global plastic pollution crisis. By working together, we can make the big changes we need to protect the greatest life support system on Earth.

In practice, that means our work tackles plastic waste at its source, delivers new ways to manage and re-use plastic, and stops the leakage into our rivers, seas and ocean.

Our Mission

To quickly and significantly reduce the amount of plastic waste produced and stop it polluting our Ocean.

Common Seas Health Workshop

We are collaborative.

Plastic pollution is too big and too complex a problem to solve alone. Common Seas provides the right people with the right tools to navigate this complexity and connect with the right partners to make change happen.

© Julia Neeson

We are catalysts

Our research and work on-the-ground harnesses the collective expertise of people, governments and businesses. Through a participatory co-design approach, we build capacity, infrastructure and momentum to catalyse change at a community, national and international level.

We are hands-on

Common Seas brings together an international team of scientists, policy experts and behaviour change professionals. Through our project work, we connect at a personal and practical level with people making change on the ground. We test our ideas in the field, learn from our own and others’ mistakes and are driven by a shared love of the sea.

We currently do this through four projects:

Plastic Drawdown

A toolkit to help governments understand their country’s plastic waste flows and take effective mitigation action.

View Project

Clean Blue Alliance

Our vision is a global network of plastic waste-free islands. We are working with governments, councils, businesses and local changemakers to identify and accelerate solutions.

View Project

Ocean Plastics Academy

A movement to help educators inspire and equip the next generation to solve the plastic challenge, while helping schools to become plastic-waste free.

View Project

Healthy Me. Healthy Sea.

An investigation into how plastic is affecting human health, with findings that will raise awareness and drive action.

View Project


Our mission and approach have been shaped by two forces. First, our founder Jo Royle’s previous career at sea skippering expeditions and trans-ocean yacht races, including voyages across the Atlantic and Pacific, and down to the Antarctic. And second, a decade of ground-breaking work safeguarding resilient and productive seas.

Learn more about our history

Meet the team





Specialist Consultants

Executive Committee


Work with us

We’re a smart, dynamic, pragmatic, professional and supportive team. Our small (but quickly growing) international crew brings together a wide range of skills and expertise, together with an adventurous spirit and a hands-on-can-do attitude.

We’re proud to be part of an incredible network of thinkers and doers, and we’re always on the lookout for new ideas, connections and opportunities to better deliver our projects.

We love people who take the initiative and learn by doing. Who punch above their weight and make things happen. We hire for the long-term and will give you as much responsibility as you can handle.

We're Hiring!

We're looking for a hardworking problem solver, with proven business acumen, to take on the new role of Chief Operating Officer (COO) for our Clean Blue East Java programme. The role is based in Surabaya. Read the full job description and find out more here.

We're also currently looking for a brilliant candidate for the role of Government and Policy Lead - deadline extended to 15th March 2021. Read the full job description and how to apply here.

Finally, we would love to hear from you if you are an experienced Communications Project Manager to help deliver a multi-media communications and policy advocacy campaign. Read the full job description here and apply soon - the deadline for applications is 6pm GMT on Friday 12th March.

Sign up to our newsletter to learn more about our upcoming programmes

academy icon arrow-down icon arrow-left icon arrow-next icon arrow-right icon black-arrow icon clean-blue-alliance icon close icon download icon drawdown icon facebook icon heart icon human-health icon instagram icon letter icon link icon linkedin icon logo-circle-only icon mail icon play icon reset icon search icon strapline icon tick icon translate icon twitter icon youtube icon