Recent research indicates that mountain ranges across the globe may be concealing substantial reserves of naturally occurring hydrogen gas, potentially unlocking a vast source of clean energy. A team of international researchers utilized field observations and computer modeling to explore the formation of hydrogen through a process known as serpentinization, where the mantle interacts with water to produce hydrogen gas. The study highlights the economic and environmental importance of identifying natural hydrogen reserves, considering the challenges associated with artificial hydrogen production that often leads to greenhouse gas emissions. By focusing on mountain range settings where plates converge, the researchers identified favorable conditions for serpentinization to occur, suggesting that hydrogen reservoirs in such areas could be more accessible compared to other locations like ocean ridges. Plans are in progress to investigate hydrogen potential in mountain regions such as the Pyrenees, European Alps, and Balkans. While the study doesn't provide a global estimate of hidden hydrogen quantities, earlier research indicates significant potential in the eastern Pyrenees alone. The prospect of utilizing hydrogen as an energy source, with water as the main byproduct, presents an optimistic outlook towards sustainable energy practices. The researchers emphasize the need for innovative exploration strategies and a deeper understanding of the tectonic history of exploration sites to unlock the economic potential of natural hydrogen accumulations. This research marks a potential turning point in natural hydrogen exploration, hinting at the emergence of a new industry focused on harnessing these hidden energy resources.