But Taylor has nothing on the airline industry, whose annual CO2 emission is pushing one billion metric tons. Airlines have completed test flights with sustainable aviation fuels, and the deals with sustainable aviation fuel producers have started to accumulate. American is the first airline globally to receive validation from the Science Based Targets initiative for its intermediate GHG emissions reduction targets and the only U.S. airline to report using more than 1 million gallons of sustainable aviation fuel in 2021. From ethanol, Gevo then processes further into a product that is chemically identical to standard aviation fuel. Judged against the standards of its own industry, American remains a leader in carbon reduction efforts.

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