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Protect the oceans

The oceans play a fundamental role in mitigating climate change but are threatened by over-fishing, rising temperatures and pollution. SUEZ is a global leader in the management of water and waste, and our commitment to protecting our oceans is part of our Sustainable Development 2017-2021 Road Map.


The ocean: a vital but endangered source of life

of the planet's water resources come from the oceans
% and more
of the oxygen on earth is provided by the sea
of marine pollution is as a result of human activity
of plastic floating in the oceans
Our commitment

Applying our knowledge to protect the oceans

Preserving the world’s oceans is a significant commitment under SUEZ’s 2017-2021 Sustainable Development Road Map. We’re using our expertise to limit pollution of the marine environment through influencing local public policy, making cities’ water networks more intelligent and supplying our customers with tangible solutions for transitioning to a more circular waste life cycle model.

  • Expertise in water and plastic waste treatment for the development of solutions to reduce pollution that originates on land
  • A comprehensive logistics network through presence in numerous regions in France and around the world
  • Constantly evolving solutions underpinned by innovation and a strong research network
Our actions

Supporting ocean protection initiatives

Scientific expeditions

Conducting expeditions alongside Expédition 7ème Continent in the Pacific and Atlantic oceans and Expédition MED in the Mediterranean Sea, we study the scope of plastic pollution in the oceans, secure media coverage to generate public awareness of the phenomenon and launch concrete initiatives.

Good Planet

Working with Good Planet, we’re combating threats to our oceans through awareness initiatives such as beach clean-ups, education materials and encouraging community involvement.

Patrick Deixonne-founder of Expédition 7ème Continent
"It is by coming together that we will be able to find areas of improvement and develop effective solutions. It is high time that we understand, explain and act"

Patrick Deixonnefounder of Expédition 7e Continent


Since 2015, SUEZ has been committed to UNESCO’s intergovernmental oceanographic commission with the aim of implementing tangible solutions that help end ocean pollution.
Our mobilisation

A global campaign for the collection of waste

On 8 June 2017, we launched #SUEZ4ocean, a worldwide mobilisation campaign for World Oceans Day. The campaign targeted our 84,000 employees, enlisting them to gather as many people as possible to clean plastic waste on shorelines.

Our solutions

Regenerating the coastline and preserving our oceans

The below examples are just some of wide range of solutions SUEZ offers to control water quality, limit pollution sources and protect and restore coastlines.

Fighting water pollution from microplastics

While treatment plants have a huge impact on minimising water pollution, certain types of pollutants – such as microfibres in our clothes – are able to pass through traditional filtration systems. At our purification station at Nice-Haliotis, we teamed up with the Nice Côte d’Azur city authorities, the MED Expédition NGO and the Villefranche oceanographic laboratory to launch Ecoseastem, the first ever research program investigating pollution by microfibres. Together, we’re working to understand and assess the level and effects of this pollutant on the ecosystem and identify the best available technologies to treat it, such as dynamic microfiltration.

Monitoring sea water quality

In the Spanish city of Barcelona, the municipality installed the COWAMA water quality monitoring system, which allows the city to identify the main sources of pollution in real time and anticipate water quality along its beaches. Through the iBeach app, citizens can instantly and easily gain information such as water quality and temperature, flag colour, UVA radiation levels and even the presence of jellyfish.

Setting up a pollution control barrier to restore coastlines

The Casablanca coastline is one of the most industrialised in Morocco, generating pollution mainly linked to the discharge of raw sewage into the sea. SUEZ helped the city build a new pollution control system to treat all of the city's sewage, protecting 24 kilometres of coastline and returning beaches to residents.

Collecting plastic bottles

Up to 90 per cent of the plastic found in the oceans is made of polyethylene, frequently used in packaging. Thanks to our Reco solution, supermarkets in Argelès-sur-Mer in France have been transformed into collection centres to prevent this waste from ending up in the sea. Residents drop off their plastic bottles and containers in the car park of their local store in exchange for vouchers. The containers are then sorted, recycled and given a second life. This circular economy initiative has already been adopted by more than 50 stores across France.
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