It was just a bit of a shower thought to be honest, but it looks like there are cleverer and more responsible people who've considered similar schemes. As I po

It was just a bit of a shower thought to be honest, but it looks like there are cleverer and more responsible people who've considered similar schemes. As I posted in a cousin comment, I found this nice blog post examining some of the more serious ideas, including water-cooling: https://www.ianvisits.co.uk/articles/cooling-the-london-underground-220/ https://www.ianvisits.co.uk/articles/cooling-the-london-unde...