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Trillions of tons of underground hydrogen could power Earth for over 1,000 years | Geologic hydrogen could be a low-carbon primary energy resource.
The study suggests that Earth could hold around 6.2 trillion tons (5.6 trillion metric tons) of hydrogen in rocks and underground reservoirs.
Knowledge of the occurrence and behavior of natural hydrogen on Earth has been combined with information from geologic analogs to construct a mass balance model to predict the resource potential. Researchers developed a model to estimate the size of these reservoirs globally, combining a prior understanding of how hydrogen occurs and behaves with geologic data. This model suggests there may be as much as 5.6 × 106 metric tonnes (that’s the equivalent weight of 3.7 million cars or 1.56 billion flamingos) of hydrogen hiding beneath the surface.
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