How can we create carbon-free energy? The future is hydrogen. As Glasgow hosts the COP26 UN Climate Change Conference, engineer and activist Enass Abo-Hamed and systems integration engineer Manjot Chana from renewable energy company H2GO chat to Trevor Cox about their groundbreaking plans to help save the planet.

The carbon we produce in heavy industries, aviation and energy supply emits pollutants. 1.2 billion people in the world don't have control over energy supplies – they can't get it at the flick of a switch.

Chemical engineer Enass from Palestine is as much an activist as she is an entrepreneur. She is passionate about raising awareness of the problems associated with climate change and set up her company H2GO to provide a solution. Palestinian Enass explains her vision to Trevor Cox - to store renewable energy as low-cost hydrogen with zero emissions.

Manjot began his career as an apprentice engineer with Jaguar. He tells Trevor how his desire to change people's lives for the better led him to switch to a career in renewable energy - and it turns out the skills he learned in the car industry are transferrable.

We mix fact and fiction in Inventive and in this edition, writer George Sandifer-Smith's short story highlights one of the biggest challenges in the climate change movement - people. There's conflict when engineers are sent to repair green energy boxes smashed by conspiracy theorists.

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