“A dream. It’s perfect”: Helium discovery in northern Minnesota may be biggest ever in North America::For a century, the U.S. Government-owned the largest helium reserve in the country, but the biggest exporters now are in Russia, Qatar and Tanzania. With this new discovery, Minnesota could be joining that list.
energy expenditure would be similar to purifying it from helium concentrate, so not much difference. considering small volume of balloon helium this wouldn’t probably mean large increase. i also don’t know what this guy is about