Hydrogen is the lightest element, colourless, tasteless, odourless and flammable. When hydrogen escapes into the atmosphere, it is so light that it scatters immediately upwards. This means that a hydrogen spill won’t pool on the ground, pollute groundwater, or soak into clothing.
Click here to see an overview of hydrogen filling stations worldwide. You can zoom into the UK to see the locations of current and planned stations.
Hydrogen fuelling stations at Coventry (top), Birmingham (above), Loughborough (below) and Swindon (bottom).
Hydrogen is believed to be the most abundant element in the universe. It is the third most abundant element on Earth (after oxygen and silicon), found in water and all organic matter.