What is hydrogen?

Hydrogen is the simplest, lightest, and most abundant atom on the planet.
The term hydrogen is commonly used to refer to the dihydrogen (H₂) molecule which is composed of 2 atoms of hydrogen.

It is usually combined with other atoms, for example in water (H₂O), or in hydrocarbons such as methane (CH₄).

It can be used in industry (to capture sulphur and carbon) to produce ammonia and manufacture fertiliser, as well as in the mobility sector as an energy carrier for vehicles.