What is white hydrogen? Scientists say the clean-energy gas could save the world.

• Hydrogen power is an exciting form of clean energy.
• But hydrogen typically needed to be produced in a lab using energy-intensive methods.
• White hydrogen, a newly identified hydrogen source, could eliminate the need for lab production.

Two scientists in France have discovered what may be the largest known deposit of a clean energy resource that could be a saving grace in mitigating climate change.