First time I've heard about this. Sounds really cool. Does this have some sort of name or term so I can look it up?

I understand the weather in the northern hemisphere is really really cold. My daughter who is now on her 5th year in Germany said this is the coldest winter she's ever had. Good thing she doesn't complain about wanting to sleep more. If she does she might find herself out of work 😂

And while you guys are cold, we in the tropics are getting high doses of ultraviolet exposure due to the heat and the sun. But I guess between the cold and the heat, hands down my choice is the latter. At least we can still enjoy the beach even just to hunt for shells.