Blind Japanese sailor completes non-stop Pacific voyage

An unusual movement of fish sparks a frenzy among anglers in South Africa. Once a year, millions of sardines swim along the country's east coast – followed by birds, seals, sharks and fishermen. DW correspondent Adrian Kriesch reports from Park Rynie.

Every year millions and millions of sardines trek along the cold currents off the South Africa coast during the southern hemisphere winter months, peaking in July. Countless dolphins and sharks hunt along the shoals - a spectacular sight that awes tourists lucky enough to find them.

Nina Gomes is no average environmentalist. With bright pink goggles and just 4 years old, she picks trash with her father from the water along the beaches of Rio de Janeiro. With Nina in tow, Gomes sets out on a paddleboard into the picturesque but polluted waters of Rio's Guanabara Bay, where she grabs plastic bottles and bags and puts them in a mesh net.

The US Geological Survey said the quake measured 8.2, triggering a tsunami warning for the US Pacific territories of Guam and the Northern Mariana Islands.

As delegates from around the world take part in the world's first summit on protecting the world's oceans, our guest has written a book explaining how algae could be a major part of our future. Seaweed can be grown not just for food, but also for medicines, for replacing plastic and for decarbonising the economy. Vincent Doumeizel spoke to us from the One Ocean Summit in Brest in north-western France.

The event in Portugal will present a nonbinding declaration meant to curb ocean pollution and destruction, as well as discuss financing models for ocean preservation.

Our oceans are louder than ever – thanks to huge container ships, offshore wind farms and gas exploration. The excessive noise renders whales deaf, kills plankton and scares fish away from their feeding grounds. What can industry do to help?

At 30 years old, Guirec Soudée has an impressive list of adventures. His exploits are sometimes overshadowed by his co-captain - a red hen named Monique who first joined him on an around-the-world voyage when he was 21.

Brazilian surfer Maya Gabeira spends much of her life in the ocean. She's seen and felt it changing over the past 20 years: from acidity levels to fewer fish to encountering plastic pollution everywhere she goes.

Measures to reduce the noise from shipping vessels include modifying propellers and/or hulls and performing regular maintenance, vibrationally isolating machinery, implementing ship speed restrictions and incentivizing the use of fewer, larger vessels.

Desalination is highly energy intensive and environmentally toxic. But the unconventional freshwater resource is now vital for human survival in dry regions.

11th Hour Racing Team wins leg 4 of the Ocean Race ahead of Team Malizia to claim a first leg win of the event.