Twenty years after setting the diesel-powered land speed record at Utah's Bonneville Salt Flats, former Royal Air Force pilot and supersonic car driver Andy Green is set to return this week with a hydrogen-powered vehicle. The 64-year-old retired racing veteran will be piloting the JCB Hydromax, a 32-foot long, yellow hydrogen-fueled car developed by British construction equipment manufacturer JCB. Green aims not only to break his previous record but also to demonstrate the potential of hydrogen as a clean energy alternative. The attempt will take place on Tuesday, and if successful, Green would also break the world land speed records for hydrogen internal combustion engines and electric vehicles. However, Green's new speed will fall far short of the supersonic speeds he achieved three decades ago with jet-powered cars. The record-breaking attempt comes after Green came out of retirement following an approach from JCB, which has invested over $134 million in hydrogen-powered engines that emit no carbon dioxide. Despite concerns about hydrogen's source and the unique safety challenges posed by its high pressure and flammability, Green and his team have undergone rigorous testing to ensure a safe run. Since 1914, the Bonneville Salt Flats, a remnant of a prehistoric lake bed located about 100 miles west of Salt Lake City, has been a popular destination for drivers seeking to set new land speed records. Green's attempt follows a fatal accident at last year's Speed Week event, underscoring the risks inherent in such high-speed endeavors.