The transportation industry is undergoing a transformation towards more sustainable solutions, with a focus on moving away from fossil fuels. Alongside electric vehicles and biofuels, hydrogen-powered vehicles and aircraft are emerging as promising alternatives. While electric engines have gained popularity, hydrogen engines are also making significant strides, especially in the automotive sector with companies like Toyota leading the way. In the aviation industry, Universal Hydrogen recently completed a groundbreaking 1-megawatt fuel cell test using liquid hydrogen, showing progress towards hydrogen-powered aircraft. However, challenges like infrastructure limitations are hindering the widespread adoption of hydrogen technology in aviation, with Airbus extending its hydrogen aircraft program to 2045 due to infrastructure concerns. The industry's shift towards sustainable transportation requires a revolutionary change in practices and policies to overcome hurdles in transitioning to alternative fuels.