Energy Companies Accelerate Drilling for Natural Underground Hydrogen as a Cheap Green Fuel Expanded Text: Energy firms worldwide are intensifying efforts to locate underground reservoirs of natural hydrogen, which could become a low‑cost and scalable clean‑energy source. Early drilling results show promising concentrations, suggesting underground hydrogen may help reduce dependence on fossil fuels. Researchers caution, however, that extraction technologies must advance before large‑scale adoption becomes feasible.
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