Once famous for building the world's biggest and most powerful engines, Finnish company Wärtsilä is investing heavily in technology to clean up the notoriously difficult heavy marine sector. CEO Håkan Agnevall lays out a roadmap to zero carbon 2050.

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Enjoy some hairy onboard footage as this alien spaceship of a sailboat records the second-fastest speed in history. The outright record is now well within reach, and this outrageous kite-powered boat is designed to absolutely smash it.

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Remigo launched its slim, portable e-outboard in the US just a few weeks back, and now it's adding a powerful accessory to the lineup. The new RemigoOne remote control lets the small e-boat captain control the throttle from anywhere on the vessel.

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Before getting its blade-like 1000 portable outboard to the US market, Temo announced its presence with another clever mobile e-drive. The Temo 450 Carbon carries like a canoe paddle but tasks an integrated prop drive with delivering up to 200 watts.

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Joining the recent American launch of the RemigoOne e-drive, Temo is introducing its own sleek, clamp-and-ride electric outboard. While similar to the RemigoOne, the Temo 1000 offers a few advantages, including a swappable battery pack.

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While hydrofoils lift out of the water thanks to an underwater fin, hydroplanes zoom along by riding directly on the surface of the water. A slick carbon-fiber scale model from startup CovaConcepts shows off the latter concept in a fun new video.

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Just last month we trawled the internet for updates to our coverage of the Dynafin propulsion concept from marine giant ABB. Now the technology has been independently tested, which also gives us our first look at the actual system.

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Deep sea mining has been off limits because it's awfully hard, and because governments haven't yet firmed up regulations around extracting minerals offshore. That might soon change with The Metal Company's latest move – perhaps sooner than it should.

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Swiss marine giant ABB has spent more than a decade developing a radically different Voith-Schneider take on a marine propeller. The Dynafin system promises up to 85% efficiency, while giving a vessel super-precise maneuvering capabilities.

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Quite similar to the ePropulsion eLite but bigger and more powerful, the RemigoOne is a hassle-free portable electric outboard built for fast, easy transport to and from the water. The push-button e-drive recently made the trip over to the US market.

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