Leave a slightly larger gap?
Shteou
joined 2 years ago
"A dream. It's perfect": Helium discovery in northern Minnesota may be biggest ever in North America
I won't speak to the purification aspect (though I suspect purification is quite trivial), but helium released into the atmosphere is wasted. Saying it's not destroyed is by the by, we aren't going to recover it from space as it rapidly escapes the atmosphere.
I can't pay my taxes in rupees, but that's a legitimate currency.