Give or take a battleship or two...or twelve...or maybe, a deposed democracy here or there.
"...and the coal industry even cheaper power for several centuries."
Give or take slavery in the coal mines (did it officially end before 1900 in Scotland, of after?) and the deaths and destruction that it causes consequential to its use.
But yeah, greater than nukes on the list of horrible solutions, badly implemented. Never underestimate their intelligence, always underestimate their knowledge.
Frank Delaney ~ Ireland