Scrap metal sets sail as 55-ft solar-electric catamaran

iYacht has been commissioned to help German TV and movie actor Daniel Roesner realize his vision for a "sustainable catamaran designed with circularity in mind." The 55-ft multihull will be built using scrap metal, reclaimed wood and recycled cork.

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Ridiculously simple idea cuts cargo ship emissions by 17.3% in first trials

That's without any modification to the ships themselves, too. The ambitious 'Blue Visby Solution' proposes enormous fuel and emissions savings for cargo ships worldwide, simply by being smarter about speed and timing and eliminating inefficiencies.

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Continue ReadingRidiculously simple idea cuts cargo ship emissions by 17.3% in first trials

eFoil inflatables soften the learning curve of hover-surfing the water

Puerto Rico's Lift Foils likens its new Blowfish add-on accessory to a set of inflatable training wheels for eFoil beginners, making launches easier as well as providing a more versatile platform for seasoned flyers.

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‘Underwater bicycle’ propels swimmers forward at superhuman speed

French company Seabike has developed a swimming device that uses your own leg power to accelerate you through the water at superhuman speeds. This crank-driven pusher prop looks a bit like an underwater unicycle... We'd love to take one for a spin!

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Dual-drive electro-foil jet ski levitates toward the future

Enautic started life with a hydrofoil e-jet ski before turning all its attention to a foil mini-boat. It seems it never totally shelved its original PWC, though, as it now presents the WaveFlyer Rogue with intent to "redefine what a PWC should be."

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Green Pioneer: World-first ammonia ship fills up in Singapore

In 2021, Australian mining and cleantech company Fortescue announced a plan to float the world's first ammonia-powered ship by 2022. It's a bit late, and not quite as ammonia-powered as we hoped, but the Green Pioneer now appears ready to roll.

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Modular underwater jet scooter delivers 2.3 m/s of subaquatic boost

Exploring the world under the waves can be exhilarating, and exhausting. An underwater scooter could help you venture farther and discover more, and the latest from China's LeFeet is currently motoring through Kickstarter.

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174-hp electric jet ski packs instant boost and 1-hour rapid charging

A jet ski The Batman would ride – that's how Finnish startup Viva Electric Jets describes its debut product of the same name. The electric new PWC promises speeds close to 60 mph (96.5 km/h) backed up by one-hour rapid charging.

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H2-powered cargo barge could be a breath of fresh air to Rhine shipping

Transporting goods by inland waterways can be a dirty business, but an EU-backed project is looking to clean up its act – launching a container vessel powered by green hydrogen on a major cargo route between the Netherlands and Germany.

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Continue ReadingH2-powered cargo barge could be a breath of fresh air to Rhine shipping