that was great fun, but it's not just about that. 90% of the world's trade is shipped and that accounts for 3% of all co2 emissions. going electric could be one solution, but another is using sailboats. and one company has been trying to bring that idea into the future. with world trade growing, it's important that we do something to reduce co2 emissions by up to 40% by 2030. we are using a rigid wing. this is where you get the different ones. that's where you have the most power. you could see it as an airplane wing that you put up on the ship. measuring the flow that is actually clear is really difficult. this vessel here is seven metres long, mainly made