Green hydrogen, derived from renewable sources like wind and solar, stands out as a crucial player in the transition to a low-carbon future, offering a clean-burning, zero-emission fuel alternative. Its versatility ranges from powering vehicles to decarbonizing industrial processes in sectors like maritime transport and aviation. The article highlights India's strategic approach to green hydrogen through initiatives like the National Green Hydrogen Mission, aiming for significant production capacity by 2030. Globally, countries like Germany and Japan are also prioritizing green hydrogen strategies, emphasizing international collaboration and robust supply chains. Despite challenges such as high production costs and infrastructure requirements, the sector's growth is promising due to technological advancements and policy reforms. Engineers are crucial in advancing the green hydrogen sector, focusing on designing efficient electrolysers, storage solutions, and infrastructure for transportation networks. They will drive the integration of hydrogen technologies into industrial processes, supporting the global energy transition. The article concludes by highlighting green hydrogen as a pivotal component for a sustainable, low-carbon global economy, illustrating a collective commitment towards a cleaner future.