 This is the beginning of my second day at COP26 in Glasgow, and I'm about to go into a session that's talking about the future of rail. Yesterday I listened into a very interesting presentation about the future of flight. And there was presentations given from Cambridge University's head of the Whittle lab and also the head of Heathrow airport. And they said that even though only two or three per cent of global missions gyda'i gweithio. One single flight can actually generate as much carbon emissions as somebody living in central Africa does in a year. So they all admitted that this was a problem that had to be dealt with and it had to be dealt with very quickly. Apparently Airbus are hoping to do a hydrogen powered flight by 2030 but is this soon enough? O'r cwestiwni i dduniad amser yn y ddweud chi i الإbriyaeth i'r bwysig i'r我跟你ll, oedd yn gallu bwysig i'r bwysig i'r bwysig i'r bwysig i'r bwysig, oedd yn gallu bod yn gallu gyntaf o moddyl iawn fel Rheol.