Trillions of tons of lightweight, energy-dense hydrogen gas may be hidden deep underground.
Those natural reservoirs, known as geologic hydrogen, could be a fruitful carbon-free fuel source.
Oil and gas giants BP and Chevron have joined a consortium to study geologic hydrogen.
That's when an oil and gas company assessed a mine that had exploded in Mali and found it was full of hydrogen gas.
In the US, two long stretches of this rock are a promising place to look for hydrogen reserves, and efforts are already underway.
Persons:
Bill Gates, Geoffrey Ellis, Joe Biden's, didn't, Ellis, John Barrasso, Evelyn N, Wang, Pete Johnson
Organizations:
Service, United Airlines, BP, Chevron, US, Energy, Natural Resources, Business, Research Projects Agency, ARPA
Locations:
Alberta, Canada, Mali, Kansas, Ontario, Michigan, New Jersey, Georgia, France, Australia, Brazil, Colombia, Albania, Albania's, Tirana, GENT