As soon as I saw this technology-related news earlier I knew it was too terrific for me not to blog about. Rolls-Royce has started trials of a Jet engine which runs on hydrogen rather than jet fuel. I know that doesn’t have anything to do with the kind of things I usually blog about, but I’m just as concerned about the environment as anyone else. If we can get our aircraft running on hydrogen instead of fossil fuels, I think it would be a huge step forward. Even I know that all you need to make hydrogen is some clean water and an electric current, and the only kind of exhaust you get is water. Thus if we can find a safe renewable source of electricity – and we already have plenty of those – surely this is a huge step forward, particularly given how much jet aircraft currently contribute to climate change. Of course, this research is still in it’s early stages, and the boffins still have a great many questions to answer, but I think this sounds very promising indeed.