With nearly 5,000 kilometres of coastline, Madagascar is the fifth largest island in the world; protecting its marine resources is a major mission. Women join in the fight. At the crossroads of the Mozambique and Indian Ocean canals, meet with the new guardians of the ocean.

Surrounded by experts, scientists, explorers, or simple fishermen, the astrophysicist and ecologist Hubert Reeves, who passed away in 2023, proposes to identify what threatens the ocean today and exposes the latest discoveries on the intelligence of animals and ocean ecosystems.

There currently remain some 350 North Atlantic right whales in the waters off eastern Canada, of which perhaps only 100 are female. Collisions with ships, fishing nets and pollution are amongst the many dangers threatening the species. Julien Robichaud meets some of those fighting to save them.

Dom, a deep-sea fisherman, is often away from home and sees little of his children, Mailys and Mattéo. They have chosen to live with him but the judge is asking him to be more present. He tries to set up his own business to keep his children from being taken away from him.

Actress Héloïse Martin sets off to meet the militants working to protect the oceans. Plastic pollution, rising sea levels, disappearing wildlife. If nothing is done, oceans may even cease acting as climate regulators. Fortunately, to prevent that happening, there's no shortage of initiatives from scientists, businessmen, artists and ordinary people!

For over 40 years, the waters of West Africa have been overexploited, largely by foreign fleets from Europe, Russia and Asia. The collapse of fish stocks is a direct threat to fishermen and their families and, more broadly, to a large section of Senegalese society.

For the city of Saint Louis, Senegal, climate change is not only a threat but a reality. Rising sea levels and coastal erosion have already forced over a thousand people to leave their homes, their land, sometimes even their family or their work, fishing. But some decide to remain. Portraits.

Rising temperatures, changing rainfall patterns, the increasing salinisation of soils... As the Senegal river delta faces the consequences of global warming, thousands of local people are forced into exile, creating Africa's first climate refugees. We discover the solutions being put in place to preserve the ecosystem and its biodiversity.

An African beach on the Atlantic coast. Loango watches with waves with intense concentration. His grandmother, Mame Tsaku, has told him that if he manages to count one thousand and one waves, his dearest wish will come true.

True hymn to nature, this docu-fiction retraces the fabulous history of the conquest of water through the construction of dams and legendary canals, the bisses, in the Valais Alps. To relive this saga, Marius accompanies his two children, Manon and Léo, in the footsteps of their grandfather.

Hugo Clément takes us to meet the men and women fighting to defend the planet, in those places where it is most urgent. A programme in three episodes to discover those devoting their lives to protecting the world's ecosystems.

A trip to the Magdalen Islands for nine weeks of lobster fishing, an activity of unbelievable intensity. It's a mad race, a race against time that an entire village depends on.

Littoral, a program meant for those who love the sea, takes you on a trip along Atlantic coastlines, wherever unexpected discoveries, impromptu encounters and intense emotions lead them.

Oceans play a major role: climate regulation, reserves of precious resources, economic and human exchanges... They are under many threats: climate change, overexploitation, pollution... Would you like to learn more? These lectures offered by the Muséum national d'Histoire naturelle (Paris) are for you!