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 about The Ocean Cleanup redeployed to tackle Great Pacific Garbage Patch
Sustainability experts have questioned the validity of The Ocean Cleanup, an initiative designed to scoop plastic waste from the Pacific Ocean. More about The Ocean Cleanup labelled "a dream that seduced many people"
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 about Biodegradable plastics offer "no advantage" over conventional plastics in reducing ocean pollution
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 about BIG unveils Oceanix City concept for floating villages that can withstand hurricanes
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 about Time-lapse movie shows submersion of Snøhetta's underwater restaurant
Snøhetta has completed Under, the "world's largest underwater restaurant", which plunges from a craggy shoreline in the remote village of Båly, Norway. More about Snøhetta completes Europe's first underwater restaurant in Norway
A nursing professor and explorer have designed a portable life-support system that they claim allows divers to eat, sleep and decompress underwater. More about Ocean Space Habitat is the world's first portable underwater tent
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 about Volvo creates Living Seawall to combat pollution and promote biodiversity
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 about The Ocean Cleanup suspended as device breaks down in Pacific Ocean
The first large-scale operation to scoop waste plastic from the Pacific Ocean has set off from San Francisco. More about The Ocean Cleanup dispatches "giant Pac-Man" to remove plastic from the Pacific
Our latest Dezeen x MINI Living video explores a proposal for an environmentally friendly underwater city, which Japanese engineering firm Shimizu Corporation claims could be a reality by 2030. More about Ocean Spiral is a conceptual city proposed beneath the surface of the ocean
Architecture firm Snøhetta has revealed plans to build a restaurant in southern Norway that will be partly submerged in the sea to give diners a glimpse below the waves. More about Snøhetta unveils plans for "Europe's first underwater restaurant"
A massive mound of plastic in the Pacific Ocean becomes a country with its own passport, flag and "Debris" currency, in this design proposal intended to raise awareness about ocean pollution. More about Petition launched to recognise Great Pacific Garbage Patch as a country
A major initiative aiming to rid a rubbish-riddled area of the Pacific Ocean from its discarded plastic will begin work within the next 12 months. More about The Ocean Cleanup will begin extracting plastic from the Pacific in 2018
One-minute movie: Pete Ceglinski and Andrew Turton's Seabin features a submersible pump that continuously sucks water into the device, separating rubbish and harmful liquids from seawater. More about Australian surfers design floating bin that filters rubbish from the ocean
An Australian duo have created a floating rubbish bin that can be installed in marinas to filter litter from the water (+ movie). More about Floating Seabin cleans the ocean by sucking rubbish from the water
Belgian architect Vincent Callebaut has developed plans for a city of futuristic ocean buildings made from 3D-printed plastic waste which extend 1,000 metres below the water's surface (+ slideshow). More about Vincent Callebaut proposes underwater "oceanscrapers" made from 3D-printed rubbish
A 100-kilometre array of floating barriers designed by a 20-year-old inventor aims to clear the oceans of waste plastic, and is one of the projects shortlisted for this year's Designs of the Year award (+ slideshow). More about The Ocean Cleanup aims to strip 70 million kilos of plastic from the sea in 10 years
Australian designer Alex Goad has created a system of modular ceramic components for forming structures that can help rebuild diminished coral reef environments (+ slideshow). More about Lego-inspired modular structures restore damaged coral reefs
News: underwater cities with infrastructure networks spiralling down into the depths of the oceans could be a reality as soon as 2030, according to a Japanese construction company. More about Spiralling underwater cities could make oceans inhabitable by 2030