Scientists may have found a clean energy source hidden under the Earth

Imagine a source of energy that produces no carbon emissions, lies beneath our feet, and could power human civilization for millennia. A growing body of research now suggests that such a resource exists, and it’s been hiding in plain sight. Scientists believe Earth’s crust may hold vast reservoirs of natural hydrogen, a hidden clean energy source with the potential to transform the global energy landscape.

In a new study published in Nature Reviews Earth and Environment, geoscientists estimate...