Geologic hydrogen is emerging as a potential game-changer in the quest for decarbonization and energy transition. Scientists have identified serpentinization as a natural process that generates hydrogen when subterranean water interacts with iron-rich rocks, leaving behind deposits trapped underground. While the exact locations and volumes of these deposits remain largely unknown, startups like Koloma are actively deploying technologies from industries like oil and gas exploration to uncover and potentially harness geologic hydrogen at scale. Despite uncertainties surrounding the abundance and extraction of geologic hydrogen, major investors such as Khosla Ventures and Breakthrough Energy Ventures are heavily backing research efforts in this space. The success of geologic hydrogen could not only revolutionize energy generation but also address transportation challenges in sectors like aviation and cargo shipping, where clean hydrogen is crucial for decarbonization. This ongoing exploration signifies a significant shift towards innovative and sustainable energy sources that could shape the future of global energy consumption.