I've seen natural outdoor rinks with a roof but no walls but rain means it is too warm to make ice naturally. A refrigeration system that pumps ice cold brine through the ice rink is very expensive. You have to lay the grid of brine piping down and pour a new concrete floor over it. It is not a simple job that you can just add as an afterthought.
Yeah, it would be very expensive, I believe that, but had no idea how expensive it would be.
I was just remembering reading that many original outdoor natural ice rinks, are now not natural
ice, but man made, so just assumed that could be done as the global warming affected the natural
ice rinks.
Guess they will have to resort to doing what we do here, no other choice if things warm up too much.
We have never known any other way, with exception of many years ago, when many of our lower fields,
and some lakes would freeze for periods of the winter, and we skated then, but of course our time period
for doing that was very short, maybe a couple of weeks or so.
Haven't seen that happen in this area for a long time, with exception of some fields freezing for
very short periods of time, lucky if it lasts a week.