Amazon Invests in GranBio to Turn Forestry and Construction Waste into Sustainable Aviation Fuel

Amazon has invested in GranBio, a biotechnology company that converts forestry residues and construction waste into sustainable aviation fuel (SAF). The technology breaks down woody biomass to produce drop-in fuels compatible with existing engines and infrastructure. GranBio plans to repurpose shuttered pulp and paper mills in the U.S. into biorefineries over the next decade. This investment is part of Amazon's broader effort to test emerging technologies that could reduce carbon emissions across its operations, including transportation and buildings. The company's process also generates heat for its own facilities, cutting external energy needs. If scaled, this approach could provide a lower-carbon fuel source for aviation and long-haul trucking. The article highlights a concrete step toward decarbonizing aviation, a hard-to-abate sector. It avoids vague claims and focuses on the feedstock, technology, and scaling plan. The involvement of a major buyer like Amazon signals real demand for SAF, though the article does not disclose the investment amount or timeline for commercial production.