Hydrogen

The zero-emissions helicopters could be in the air by 2025.

Emirates Team New Zealand is developing technology that could be applied to the next generation of AC75 racing yachts.

The 180-footer offers a sleek minimalist design and 360-degree views.

It also takes less than 20 minutes to refuel.

So far, eight teams have announced their prototypes will feature hydrogen propulsion.

A top speed in excess of 200 mph could be on the cards.

French builder Fountaine Pajot will soon introduce zero-emissions, zero-noise hydrogen power to the cruising world via its Samana 59.

The bike’s powertrain uses a fuel cell to turn gaseous hydrogen into electrical energy.

“Phoenix PT,” scheduled to fly next summer, is a prototype of a full-scale, two-passenger aircraft that will make its first flight in 2022.