Hydrogen is the most abundant element in the universe and for years, researchers have been studying it as a potential pollution-free energy of the future.This episode investigates how aligning wind energy with hydrogen production could be a key part of the decarbonization jigsaw for transport and heating. It looks at how scientists are splitting water to produce emission-free 'green' hydrogen and examines trials of hydrogen-powered buses. It also considers how liquid metal hydrogen could be the future of space travel.

Originally released by Network Ireland Television, 2020. Streaming video file encoded with permission for digital streaming by Infobase on June 15, 2023.