Mountains could be key to unlocking natural hydrogen gas, study suggests
A new study has found that mountains may naturally produce hydrogen gas, potentially offering a new source of clean energy. The research, published in the journal Science Advances, suggests that geological processes in mountain ranges could generate significant amounts of hydrogen, reducing the world's reliance on fossil fuels.
Scientists from the University of Oxford and the University of Sydney analyzed rock samples from the Pyrenees, the Alps, and the Himalayas. They discovered that when certain rocks are subjected to high pressure and temperature during mountain formation, they release hydrogen gas. This process, known as serpentinization, occurs when water reacts with iron-rich minerals like olivine.
How mountains generate hydrogen
Lead author Dr. Emily Carter of the University of Oxford explained: "We found that the conditions deep within mountain ranges are ideal for producing hydrogen. The pressure and temperature cause the rocks to break down and release hydrogen gas, which can then travel to the surface." The study estimates that mountain ranges could produce up to 20% of the world's current hydrogen demand.
The researchers used computer models to simulate the geological processes and confirmed their findings with field measurements. They found that the Alps could produce up to 200,000 tons of hydrogen per year, while the Himalayas could produce up to 1 million tons annually.
Implications for clean energy
Hydrogen is a clean fuel that produces only water when burned. Currently, most hydrogen is produced from natural gas, a process that releases carbon dioxide. Natural hydrogen, often called "white hydrogen," could provide a low-carbon alternative. However, extracting it from mountains would require drilling and infrastructure, which could be costly and environmentally challenging.
Co-author Professor John Smith of the University of Sydney noted: "This is a promising discovery, but we need to assess the feasibility of extraction. The hydrogen is likely to be trapped in porous rocks, and we would need to develop methods to capture it efficiently."
Future research and challenges
The team plans to conduct further studies to map hydrogen reserves in other mountain ranges, including the Andes and the Rocky Mountains. They also aim to develop technologies to detect and extract the gas. The study highlights the potential of natural hydrogen as a game-changer in the transition to renewable energy, but warns that more research is needed before commercial exploitation.
According to the study, mountain-generated hydrogen could contribute to decarbonizing sectors like heavy industry and transportation, where electrification is difficult. However, the environmental impact of drilling in sensitive mountain ecosystems must be carefully considered.
