H2 production routes & emissions factors

Hydrogen has been identified as a key transition fuel in the global effort to limit warming to 1.5 degree celcius, as prescribed by the Inter-Governmental Panel on Climate Change (IPCC). Hydrogen is the most abundant chemical element in the universe; however, a significant amount of energy is needed to break down a molecule to get pure hydrogen, and that energy must come either from heat or electricity.The diverse colours of the hydrogen spectrum signify the different feedstocks for hydrogen production, varied production technologies and routes, as well as the different byproducts of each production process. So, although hydrogen is considered a transition fuel, some forms of hydrogen are quite emissions intensive.