For billions of years, the Earth’s ancient continental rocks have naturally generated hydrogen through deep geological processes. These processes—such as chemical reactions between iron-rich minerals and groundwater, and water radiolysis caused by natural radioactivity—release natural hydrogen, some of which accumulates in underground traps and reservoirs. This overlooked resource holds the potential to supply the global hydrogen economy for centuries.
The promise of natural hydrogen became evident with the discovery of a near-pure hydrogen field in Mali. This accidental find attracted international attention from governments in the U.S., Canada, Australia, the U.K., and Europe. By late 2023, over 40 companies were actively exploring natural hydrogen, a number expected to have doubled since 2024. Alongside growing interest from venture capital and international energy companies, natural hydrogen is emerging as a serious contender in the global race for clean energy solutions.
Historically, hydrogen has been a multi-billion-dollar market, primarily used in fuel refining (44%), ammonia and fertilizer production (34%), and steel manufacturing (5%). These sectors are among the hardest to decarbonize, making hydrogen essential for reducing industrial emissions. However, most hydrogen today is produced using fossil fuels, contributing around 2.5% of global CO₂ emissions. Green hydrogen—created from renewable electricity and water via electrolysis—offers a cleaner alternative but remains costly and dependent on land and water resources.
Natural hydrogen provides a low-carbon alternative that bypasses many of green hydrogen’s limitations. It has a similar or even lower carbon footprint, requires no surface water, and takes up significantly less land. Infrastructure needs are modest, resembling hydrocarbon drilling systems but with different well completion methods. These advantages make natural hydrogen especially attractive in regions with limited renewable energy or water availability.
Despite its potential, regulatory uncertainty remains a major obstacle. In many jurisdictions, hydrogen is not formally recognized as a natural resource, meaning exploration and extraction projects face delays or lack legal frameworks altogether. Where regulation does exist, it often falls under outdated mining or hydrocarbon laws that do not account for hydrogen’s unique characteristics. The lack of clarity hinders investment, infrastructure development, and community consultation—essential steps for sustainable project success.
An encouraging example comes from South Australia. Once regulations for natural hydrogen exploration were introduced, the government saw a rapid influx of exploration license applications. This demonstrates that policy action can unlock exploration and accelerate industry development.
Adding to the resource’s appeal, natural hydrogen is often co-produced with helium, a critical element in electronics and medical technologies. Canada, for example, includes helium in its Critical Minerals Strategy. Co-extraction offers economic benefits and strengthens the case for investing in hydrogen-rich geological formations.
Interest in natural hydrogen has been reignited not only by recent discoveries but also by the release of historical Soviet research, which highlighted large accumulations previously overlooked. As exploration expands globally—in Canada, Africa, Australia, and Europe—the data collected will be vital for assessing viability and guiding future policy.
In summary, natural hydrogen represents a promising, underexplored solution to meet growing global energy needs while helping decarbonize key industries. With supportive regulation, strategic investment, and scientific momentum, it could become a cornerstone of the clean energy future.