Climate benefit of a future hydrogen economy

Abstract Hydrogen is recognised as an important future energy vector for applications in many sectors. indirect climate gas which induces perturbations of methane, ozone, and stratospheric water vapour, three potent greenhouse gases. Using data from a state-of-the-art global numerical model, here we calculate the hydrogen metrics function considered time-horizon derive 100-year Global Warming Potential 12.8 ± 5.2 20-year 40.1 24.1. The scenarios transition show that green economy beneficial terms mitigated carbon dioxide emissions all policy-relevant time-horizons leakage rates. In contrast, methane associated with blue reduce benefit lead to penalty at high rate or share. production pathways are key leverages reach clear large-scale economy.