Smart Boats That Sail on a Bed of Bubbles

What’s being done to clean up the shipping industry and make it less polluting? Nick Holland looks at innovative ideas to make ships burn less fuel. The industry plays a critical role in the global economy. But it’s under pressure to decarbonise. Could giant rotating cylinders and millions of tiny bubbles be the answer?Presenter: Kat Hawkins Producer: Nick HollandPhoto Credit: Getty Images