Several significant developments in the aviation industry are paving the way for a more sustainable future. Airbus has initiated hydrogen feasibility studies at major airports in North America, envisioning them as 'hydrogen hubs'. Alongside, the EU-funded GOLIAT project, led by Airbus, will prepare airports for liquid hydrogen operations. Pittsburgh International Airport is set to invest $1.5 billion in constructing an alternative jet fuel plant on-site, potentially producing 70 million gallons of sustainable aviation fuel annually. Moreover, the U.S. Department of Energy's backing of Piasecki's hydrogen VTOL aircraft study signifies a positive step towards advancing hydrogen technology for urban air taxi missions. These efforts highlight a collective industry shift towards embracing sustainable aviation fuel and hydrogen technologies to reduce carbon emissions and promote environmental sustainability.