In Zug, Switzerland, Bertrand Piccard, known for his Solar Impulse project, is now moving forward with a new venture called Climate Impulse. This project involves circumnavigating the globe in a green hydrogen aircraft in 2028, aiming to showcase the potential of green technologies. The aircraft, developed in collaboration with partners like Syensqo and Airbus, will be powered by liquid hydrogen fuel cells and carry 5.5 tonnes of hydrogen and cargo. The ultimate goal is to demonstrate the feasibility of decarbonizing aviation using green hydrogen. With a wingspan of 34 meters and flying at an altitude of 3,000 meters, the pioneering aircraft addresses challenges in propeller efficiency, fuel cells, and electric motors. Raphaël Dinelli, the co-pilot, highlighted the importance of technological advancements to achieve energy performance and weight reduction in the aircraft. However, there are significant obstacles ahead, including aircraft design, infrastructure, and hydrogen production. The project's innovative approach and collaboration with industry leaders like Airbus indicate a positive outlook, despite the complexities involved in making green hydrogen aircraft a mainstream choice for civil aviation.