It is widely known and well established that climate change effects are not going to be reversed if CO2 emissions are not cut before 2030. Green hydrogen energy (GHE) appears to be one of the most promising solutions, and is currently gathering unprecedented political momentum. It is essential to take advantage of this opportunity to make green hydrogen one of the main energy system pillars for decarbonization processes. This paper analyzes the current research on the use and public policy implementation of GHE as the main alternative to fossil fuels by conducting a systematic literature review to find, evaluate, and systematize ideas, methods, and hypotheses. The results suggest that green hydrogen has the potential to be the renewable resource that can replace carbon energies entirely. The development of a global sustainable hydrogen economy would require the establishment of entirely new value networks. A suitable public policy implementation strategy using the existing natural gas infrastructure is the correct development path, and this article proposes a theoretical basis to show the way forward. One necessary step involves continuing to discover and improve the ability of green hydrogen energy to influence policy decision-making.