The demand for hydrogen as a clean energy carrier is increasing globally, with production reaching 95 million metric tons by 2021 sourced mainly from natural gas, coal, oil, and electrolysis. Scientists are focusing on more sustainable methods for hydrogen production, considering natural gas as a bridge fuel in the transition to greener energies. Skolkovo Institute of Science and Technology researchers in Moscow have introduced an innovative approach to produce 'green' hydrogen from natural gas in gas reservoirs. By converting methane into hydrogen via steam methane reforming initiated by in situ gas combustion, the process aims to eliminate greenhouse gas emissions, offering a potential solution for sustainable hydrogen generation. Laboratory experiments have shown up to 45% efficiency in converting methane to hydrogen in a controlled environment, with the process based on established technologies adapted for hydrogen production from real gas reservoirs. The technology involves injecting steam and a catalyst into the reservoir, igniting the gas, and extracting hydrogen through a membrane, leaving carbon monoxide and dioxide trapped underground. This groundbreaking research supported by a Russian Science Foundation grant opens up possibilities for a cleaner and more sustainable energy future as the method progresses to real-world testing.