The global green hydrogen industry is facing a challenge due to the extensive water requirements of electrolysis, particularly the need for clean water. With an estimated 4 billion people around the world already experiencing water scarcity issues, the use of clean water for hydrogen production poses a sustainability concern. Companies like Sinopec are exploring an alternative approach by developing electrolyzers capable of directly using seawater, thus reducing the demand for clean water. Researchers from Cornell University, MIT, and other institutions have collaborated on a solar-powered seawater electrolysis system. This innovative system not only produces green hydrogen but also generates potable water through a distillation process, utilizing waste heat from solar panels. The goal is to achieve a significant cost reduction in green hydrogen production, aiming for $1.00 per kilogram. Collaborative efforts on green hydrogen production are also underway globally, as seen in the Egypt-France project, which integrates desalination facilities powered by nearby renewable energy sources. These initiatives showcase the innovation and progress being made in the field of sustainable and efficient green hydrogen production.