There may be an opportunity for lunar resources to play a role in the energy industry here on Earth.
Power generation is a vast and growing market.
Energy is a product that may legitimately be worth bringing back to the Earth's surface from the Moon. Along with the other light gases mentioned above, we can extract an isotope of helium from the regolith. He-3 has the potential to be used in fusion reactors here on Earth to provide electrical power. It is nearly absent from Earth as a natural resource Millions of kilograms of it are present in lunar soil, albeit at very low concentrations. It may be the fuel for the next generation of electric power plants, providing nearly pollution-free power.