Graduates from London's Royal College of Art have developed a way to form artificial reefs called Resting Reefs from cremated ashes, in a bid to provide a "meaningful funeral service" that regenerates endangered ecosystems. More
Six large sculptures of fractured human faces form an underwater museum that British sculptor Jason deCaires Taylor has created off the coast of Cannes, France. More
Coral Carbonate is a research project that involves 3D printing with calcium carbonate to create sustainable underwater "houses" for coral reefs and marine life to grow. More
Swiss designer Yves Behar has unveiled his design for French ocean conservationist Fabien Cousteau's underwater pressurised research station that will be "the ocean's equivalent to the International Space Station". More
British sculptor Jason deCaires Taylor has created an underwater greenhouse on the seabed off the coast of Australia as a habitat for marine life. More
This luxury holiday home in the Maldives has an aquarium-like underwater bedroom suite where guests can watch marine life while they rest, wash and get dressed. More
Sam Jacob has reimagined a famous Eames textile for his London Design Festival installation Sea Things, to highlight the threat ocean plastic poses to marine life. More
Adult video website Pornhub has filmed a movie on a litter-filled beach to raise money to remove plastic from the world's oceans. More
Dutch non-profit The Ocean Cleanup plans to burn some of the plastic it collects from the Pacific Ocean, Dezeen has learned. Designers and environmentalists say the move "makes no sense". More
Architectural designer and visualiser Honglin Li has proposed deploying floating high-rise waste-to-energy plants fuelled by plastic waste to clean up the oceans while generating electricity. More
Eliminating plastic from the seas is not possible and instead new materials need to be developed to replace plastic, according to the founder of Parley for the Oceans. More
A floating device employed by The Ocean Cleanup project has been upgraded and returned to sea in a second attempt to catch the plastic waste circulating in the Pacific Ocean. More
Sustainability experts have questioned the validity of The Ocean Cleanup, an initiative designed to scoop plastic waste from the Pacific Ocean. More
Bags made of supposedly biodegradable plastics remain intact and useable three years after being dropped in the sea or buried underground, researchers have found. More
Architecture firm BIG has designed a concept for a floating city of 10,000 people that could help populations threatened by extreme weather events and rising sea levels. More
This movie shows the completion of Europe's first underwater restaurant, designed by Snøhetta, as it is submerged off the coast of Båly, Norway. More
Snøhetta has completed Under, the "world's largest underwater restaurant", which plunges from a craggy shoreline in the remote village of Båly, Norway. More
A nursing professor and explorer have designed a portable life-support system that they claim allows divers to eat, sleep and decompress underwater. More
Volvo has installed an environmentally friendly seawall along the coast of Sydney's harbour that aims to improve biodiversity and water quality in the area. More
A fracture in The Ocean Cleanup's "giant Pac Man", dispatched to scoop up waste from the Pacific Ocean, has forced the company to abort the mission and haul the apparatus back to shore. More
