Sustainable aviation fuel is emerging as a key tool in the aviation industry’s effort to reach net-zero carbon emissions by 2050, as companies look to reduce their environmental footprint without overhauling existing aircraft. Unlike conventional jet fuel, sustainable aviation fuel, or SAF, is produced from renewable sources such as used cooking oil, agricultural waste and forestry residues. Business Airport International reports these fuels can cut lifecycle carbon emissions by as much as 80% compared with traditional petroleum-based fuels while working in current engines and infrastructure. The aviation sector has already made progress on efficiency, but industry leaders say SAF represents the most immediate path to deeper emissions reductions. Business aviation, while a small share of global emissions, has taken a leading role in adopting the fuel. Challenges remain, including limited supply and higher production costs. Still, policymakers and industry groups are pushing for expanded production, viewing SAF as critical to meeting long-term climate goals.