into this technology to get something out? zeroavia has the backing of the uk government and big investors and has over 2,000 pre—orders from airlines. so there seems to be significant belief in hydrogen despite all of the challenges. but what i really want to know is... are we going to be able to jet off to spain anytime soon in a hydrogen plane? history shows that you need to start small and grow big. and that growth would take a while. but if this could be scaled to the largest of planes, then the difference to emissions would be jumbo. you know, it sounds like, if they can get it right, hydrogen planes could be a massive deal. yeah. it's as much about the infrastructure, though. they've got a lot to do. right, 0k, noted. 0k, we're going from the air to the sea now. you might not think of the world's oceans as a great source of green