The hunt is on for naturally occurring hydrogen, with companies across continents drilling into the earth in search of this clean fuel. From Nebraska to Quebec, the race is heating up as firms hope to tap into geologic reservoirs that could revolutionise hydrogen production.

Hydrogeologists are excited by signs that natural processes can produce significant amounts of hydrogen, potentially without the high costs of conventional methods. However, questions remain about capturing and moving this elusive gas.

Some companies are taking matters into their own hands, using techniques like stimulated geologic hydrogen to create new routes for water and catalysts to react with rock formations. But if the engineering works out, it could spell a new beginning for hydrogen as a climate solution.

The future of clean energy may lie not just in our skies or seas, but deep beneath them. Time will tell whether this underground hunt pays off.