Hydrogen is the energy du jour. It’s seen as a clean, smart alternative to fossil fuels, and major investments in its future are being made around the globe.  

The problem is, almost all of the hydrogen currently produced isn’t green at all.

So, can hydrogen live up to its pollution-free promise? And where and when will it find its niche in the global energy mix.

Listen to segment on the ABC website, featuring Dr Fiona Beck