The article highlights the significance of hydrogen as a zero-carbon energy source and its potential to drive global energy system decarbonization and achieve sustainable development goals. With an increasing focus on renewable energy sources, including wind, solar, geothermal, and hydrogen, countries are exploring hydrogen as a clean energy alternative to traditional fossil fuels. Liquid hydrogen (LH2) is identified as a promising medium for large-scale energy storage due to its high energy density and improved security features. The USA, Japan, and select European countries have made substantial progress in hydrogen liquefaction technology, supporting applications in industries such as aerospace, transportation, and fuel cells. Despite challenges related to energy consumption and efficiency in the liquefaction process, ongoing research aims to enhance the viability and cost-effectiveness of hydrogen utilization. By leveraging the potential of hydrogen as a secondary energy carrier, countries are striving to reduce greenhouse gas emissions and advance towards a more sustainable energy future.