American Airlines has agreed to buy 100 hydrogen-electric engines from ZeroAvia to power regional jet aircraft, aiming to reduce inflight emissions to zero except for water vapor. This investment aligns with the airline's commitment to sustainability and its goal to achieve net-zero greenhouse gas emissions by 2050. ZeroAvia, a clean aviation innovator with operations in California, is developing hydrogen-electric engines for commercial aircraft, with a focus on reducing inflight emissions. The partnership between American Airlines and ZeroAvia marks a significant step towards a low-carbon future in commercial aviation. ZeroAvia's technology uses hydrogen in fuel cells to generate electricity, providing cost savings and environmental benefits. In a separate move towards sustainability, Southwest Airlines has launched Southwest Airlines Renewable Ventures, a subsidiary dedicated to sustainable aviation fuel. Southwest's investment in LanzaJet Inc., a sustainable aviation fuel technology provider, reflects the airline's commitment to reducing its jet fuel consumption with sustainable alternatives. These initiatives highlight the increasing focus of major airlines on clean technology and sustainable practices in the aviation industry, paving the way for a greener future of flight.