GranBio has developed a process that converts forestry residues and construction debris into lower-carbon fuels, including sustainable aviation fuel, renewable diesel, and renewable gasoline. The company uses materials like logging leftovers, crop stalks, and discarded pallets that would otherwise go to landfills or add to wildfire risk. The fuels are chemically identical to petroleum-based versions and work in existing engines and infrastructure. Amazon is funding the project as part of its Climate Pledge to reach net-zero carbon by 2040. GranBio plans to scale production by converting closed pulp and paper mills in the United States into biorefineries, which could also bring back manufacturing jobs to rural areas. The company says the process generates its own heat, reducing external energy needs. The article covers the technology, the investment rationale, and the broader goal of making lower-carbon fuel available at scale for aviation and trucking.
