Could green hydrogen be the ultimate solution to the fossil fuel era?

Nature · Published 7 October 2026 Swipe more like this →

In short: As climate change accelerates, social entrepreneur Vaitea Cowan explores how mass-producing electrolyzers could make carbon-free fuel affordable and accessible for everyone, potentially ending our reliance on fossil fuels.

In this talk, Vaitea Cowan discusses the potential of green hydrogen to replace traditional fossil fuels. She focuses on the role of electrolyzers—devices designed to separate water into its molecular components, hydrogen and oxygen. By scaling the production of these devices, Cowan argues we can create a clean, carbon-free fuel source that is both accessible and affordable for a global population.

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