Scientists have discovered a new technology that converts wastewater into biofuel, potentially cutting airplane emissions by 70%. This sustainable aviation fuel (SAF) is made from biomass and agricultural waste. The process uses anaerobic digestion and membrane-assisted in-situ product recovery to produce volatile fatty acids, which can be converted into SAF. Background: The global aviation industry contributes 2.5% of carbon dioxide emissions, making it essential to find greener fuel solutions. Perspectives: While the new technology has significant potential for reducing greenhouse gas emissions, its commercialization and scalability are still uncertain. Additionally, the production process may have implications for wastewater treatment methods and local ecosystems. Source: https://www.livescience.com/technology/engineering/new-wastewater-jet-fuel-could-cut-airplane-emissions-by-70-percent