A new gold rush for a potential clean energy source [Video]

A global gold rush is underway for a long-overlooked resource that advocates say could play a significant role in the shift away from fossil fuels.

Geologic hydrogen, sometimes referred to as white, gold or natural hydrogen, refers to hydrogen gas that is found in its natural form beneath Earth’s surface. It is thought to be produced by high-temperature reactions between water and iron-ich minerals.

Hydrogen has long been billed as one of many potential energy sources that could play a pivotal role in the energy transition, but most of it is produced using fossil fuels such as coal and natural gas, a process that generates significant greenhouse gas emissions.

Green hydrogen, a process that involves splitting water into hydrogen …