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
Architects and urban designers are finally responding to the threat of rising sea levels by welcoming water into cities, says urbanism expert Tracy Metz. More about "Architects are going crazy with the idea of a new relationship to water" says Tracy Metz
These glass and timber holiday cabins by Norwegian architect Snorre Stinessen overhang the coastline of Norway's Manshausen Island, providing a base for Arctic Circle explorers (+ slideshow). More about Arctic exploration cabins by Snorre Stinessen cantilever over the Norwegian shoreline
David Chipperfield Architects has completed a series of stone apartments raised on plinths above the surface of a water garden in Hangzhou, eastern China (+ slideshow). More about David Chipperfield creates "village" of stone dwellings in Hangzhou marshland
Following its design of the UK's "first amphibious house", Baca Architects has unveiled a floating house concept that could be deployed across London's waterways as a solution to the lack of new homes in the capital (+ slideshow). More about Baca Architects proposes prefabricated amphibious housing for London's canals
Spanish watersports brand Onean has unveiled two battery-powered boards that make it possible to surf without any swell (+ movie). More about Onean launches motorised electric boards for waveless surfing
A team of architects, artists and scientists has built a pair of basalt structures on the shoreline of a South Korean island to help to draw up fresh water from a spring below the sea. More about Volcanic stone structures pump fresh water from the sea surrounding a South Korean island
Spanish architect Andrés Jaque has created a towering network of water-purifying pipes for this year's courtyard installation at MoMA PS1 in Queens, New York (+ slideshow). More about Andrés Jaque's giant water purifier unveiled in MoMA PS1 courtyard
A huge lightbox is wedged underneath a wave-shaped viewing platform at the end of this pier, designed by Dutch architect René van Zuuk for a lake in the city of Almere (+ slideshow). More about René van Zuuk creates a wavy pier with an integrated lightbox over an Almere lake
Australia-based designer Alexander Lotersztain has created a floating platform system that can be customised with clip-on lighting, furniture, and docking facilities – and can even be used as a helipad (+ slideshow). More about Waterscape by Alexander Lotersztain is a modular platform for living on water
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
Design March 2015: Reykjavík designer Unnur Valdís Kristjánsdóttir has produced a set of floatation devices to keep users' bodies just below the surface of the water while soaking in the country's hot springs (+ slideshow). More about Icelandic designer creates floatation caps and armbands for bathing in geothermal water
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
This house by Suppose Design Office slopes down beyond the boundary wall of a reservoir in Fukuoka, south-west Japan, to allow residents to be as close as possible to the water (+ slideshow). More about Suppose Design Office's House in Hibaru stretches down to the edge of a reservoir
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
Dutch Design Week 2014: Netherlands-based multidisciplinary artist Helmut Smits has developed a device for "a world in which drinking water can be harder to come by than Coca-Cola". More about Helmut Smits' The Real Thing turns Coca-Cola back into water
Interieur 2014: condensation droplets pattern the inside of the balloon-shaped shade of this lamp by French designer Arturo Erbsman, which has won an Interieur Award at the Belgian design event. More about Water droplets diffuse light from Arturo Erbsman's Atmos lamp
Work is nearing completion on the Amphibious House by Baca Architects – a family home on an island in the middle of the River Thames that can float on rising floodwater like a ship in its dock. More about UK's "first amphibious house" can float on floodwater like a boat in a dock
News: a company that claims to have developed the first electric car powered by salt water says the vehicle has now been approved for testing on public roads in Germany and the EU (+ slideshow). More about Salt water-powered electric car approved for roads in Europe
A veil of water stretches 40 metres between the trees of a wood in central France to form this installation by French architect Louis Sicard (+ slideshow). More about Bridal Veil installation by Louis Sicard creates a curtain of water through the forest