American Airlines has taken a significant step towards a cleaner future in aviation by investing in hydrogen-electric engines for its regional aircraft. Partnering with aviation startup ZeroAvia, the airline has provisionally purchased 100 of these engines, showcasing its commitment to sustainability goals aiming for net-zero greenhouse gas emissions by 2050. This move towards hydrogen-powered aviation represents a potential game-changer as it could revolutionize regional air travel by significantly reducing carbon emissions. Unlike traditional jet engines burning fossil fuels, these hydrogen-electric engines use fuel cells to generate electricity, emitting only water vapor during flight. While there are challenges in hydrogen production, major players in the aviation industry, including American Airlines, are optimistic about the technology's future. Despite the skepticism surrounding hydrogen as a viable alternative due to production costs, investments and advancements in technology are paving the way for a more sustainable aviation industry. The CEO of American Airlines, Robert Isom, acknowledges the complexities of transitioning to a low-carbon future in aviation but emphasizes the importance of investing in promising technologies like hydrogen-electric engines. This investment not only demonstrates the airline's commitment to environmental sustainability but also signifies a significant advancement towards a greener aviation industry, meeting the demands of environmentally-conscious travelers.