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Boeing has previously conducted successful test flights replacing petroleum jet fuel with 100% sustainable fuels to address the urgent challenge of climate change.
According to the Air Transport Action Group, U.S. Department of Energy and several other scientific studies, sustainable aviation fuels reduce CO
2 emissions by up to 80% over the fuel s life cycle with the potential to reach 100% in the future. Today, sustainable aviation fuels are mixed directly with conventional jet fuel up to a 50/50 blend the maximum allowed under current fuel specifications. In order to meet aviation s commitment for reducing carbon emissions by 50% from 2005 levels by 2050, airplanes need the capability to fly on 100% sustainable aviation fuels well before 2050.