Beneath the Earth’s surface, a promising solution to zero-emission fuel might lie in abundance. Substantial investments are being directed towards uncovering this potential resource. The village of Bourakébougou in western Mali has showcased a clean energy phenomenon that holds global implications. The journey begins in 1987 when an inadvertent release of odorless gas during a water drilling attempt was found to be highly flammable, marking the discovery of naturally occurring hydrogen. Decades later, geologists have identified untapped reservoirs of this “white” hydrogen in various regions worldwide, including the US, Australia, and parts of Europe.
This revelation could revolutionize climate efforts. Hydrogen is gaining traction as a key player in the race against carbon emissions. Its clean-burning properties offer a replacement for fossil fuels across industries, from factories to homes, with zero greenhouse emissions.
The challenge, however, has been hydrogen production. Conventionally, hydrogen is derived from fossil fuels, emitting carbon (known as “blue” hydrogen), or through expensive processes using renewable energy and water (green hydrogen). The discovery of natural sources addresses both hurdles.
The potential impact is substantial. The US Geological Survey suggests that even a fraction of subterranean hydrogen could suffice for centuries. During the Covid pandemic, historical documents revealed significant hydrogen findings in South Australia, sparking a modern exploration. Similar ventures, like Gold Hydrogen, are eager to emulate the transformative impact of oil discoveries like Oil Creek, Pennsylvania, in the hydrogen sector.
Backing from influential figures, including Bill Gates, has bolstered the burgeoning hydrogen industry. Investments are pouring into companies like Koloma, Natural Hydrogen Energy, and others, targeting hydrogen-rich areas like the US’s Midcontinental Rift System and Europe’s Lorraine mining basin.
Yet, the potential of white hydrogen hinges on ongoing projects’ outcomes, as Philip Ball, a geoscientist, explains. Unraveling the hydrogen formation process, migration, and extraction methods are vital to gauging production costs. While estimates suggest white hydrogen might be cheaper than alternatives, uncertainties remain. Oil giants like Total and Repsol have shown modest interest, raising questions about their willingness to support an industry that might disrupt their fossil fuel reserves.
This dilemma is likened to a see-saw. If white hydrogen’s success threatens the value of trillions invested in fossil fuels, oil companies may resist support. However, a tipping point could arise where missing out becomes a financial risk. As in the past, if the hydrogen pioneers succeed, major industry players might pivot, aligning their interests with both financial gain and climate consciousness. The hope is that white hydrogen, if it lives up to its promise, could provide a double-edged solution: driving profits and contributing to climate mitigation.
