Brown, grey, blue, green: why does the colour of hydrogen matter?

It is earmarked as a front-runner in the quest for lower carbon, but The Energy Podcast explores why all hydrogen may not be equal when it comes to meeting climate goals. Presented by Bryony MacKenzie. Featuring Dr Danielle Stewart, National Grid; Paolo Brunengo, KBR; Frank Kiesslich and Nan Liu, Shell Catalysts & Technologies.See omnystudio.com/listener for privacy information.

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The world faces a critical challenge: how to meet growing energy demand while urgently reducing carbon dioxide emissions. It means the global energy system must change. Will innovation come to the rescue? How will renewable energy evolve? Does the oil and gas industry have a future? Will batteries, hydrogen or even blockchain alter the way we live, work and travel? The Energy Podcast by Shell explores these questions. We speak to the engineers at the pioneering edge of science and technology, the experts tracking progress towards the goals of the Paris Agreement, and the entrepreneurs working to drive the change.