With 4.5 billion passenger trips taken each year and more than 16 million planes taking off annually in the U.S. alone, aircraft are responsible for 2.5% of global CO2 emissions, and the problem is growing. But there could be a solution that rivals the power of fossil fuels without the negatives - hydrogen. Aircraft giant, Airbus, is exploring the technology, as well as new startups, ZeroAvia and Universal Hydrogen. CNBC explores hydrogen planes and whether they could fix aviation’s emissions problem.

Chapters:
00:00 — Introduction
02:17 — Hydrogen in aviation
04:16 — Companies
09:17 — Challenges

Produced, Shot and Edited by: Andrew Evers
Senior Producer: Shawn Baldwin
Additional Camera and Narration: Erin Black
Animations: Josh Kalven
Additional Footage: Getty Images, Universal Hydrogen, ZeroAvia, Airbus, Eviation, NASA, Textron Aviation, Connect Airlines, Amelia

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