...and what else, dazzlenation....remember 'dartington arena'  at 'woodall's MOD office - along with her greek shipping dad?...not that I want to cast aspersions, here - regarding what type of 'money' might be behind ammonia experimentation etc etc....see previous posts...LOL..."one big fridge" replies BI online..."they joked about it as being..." etc etc and so the concern would be - something along the lines of....should you carry 'sulphur sticks' in your luggage?....go figure:

https://www.ship-technology.com/features/ammonia-powered-ships/