Fucking stop using miles. Just. Use . The Ducking. Metric. System.
It's also odd to read about Europe in measurements like "cubic miles" given there's only one country in Europe using imperial and their system is different from the US imperial. The author is a self-described "Yorkshireman" so I assume it's UK imperial but I have no idea what that means for American audiences. Are US and UK miles the same?
(In my everyday thinking I use meters and miles alongside each other, which is...ridiculous. But I was a little too late to the world to properly learn inches and pounds, so it's centimetres and kg all the way.)