For those of you who have not yet decided that this guy Ludwig is a dufus and / or a troll.... natural gas is not
methane. Although methane makes up approximately 96% of the local natural gas here, there are many other
constituents.

96% is "most", most of the time. Where I'm from.

Several of the products that he says are stored at human habitable
temperatures... well lets just say
that he is wrong at least on the ones that I am most familiar with. For instance, ammonia is stored at temperatures
around -28 degrees f. As a matter of fact, nitrogen, carbon dioxide, and ammonia are all cryogenically stored.

Nitrogen must be cryogenic to be in liquid form. CO2 and NH3 are
stored in regular steel tanks and when both gas and liquid are in the
tank, and the tank is allowed to sit with no flow, the tank assumes
ambient temperature (or higher in the sun) and the pressure inside is a
direct function of the product's temperature. Same with Freon (most
kinds), propane, etc. Nitrogen, oxygen, hydrogen, helium, are a liquid
at earth temperatures only under freakish pressures. There is said to
be solid methane at the bottom of the ocean in certain places but what
is the absolute pressure at those depths? About ten thousand psi is the
practical limit for pressure vessels. That's why these gases are
transported cryogenically or as _gases_ in the 2-3000 psi welding type
cylinders.