The aviation industry contributes about 2.5 of global carbon emissions annually. In October of 2021, the International Air Transport Association released its road map to achieving net-zero carbon emissions by 2050. About two-thirds of the plan relies on sustainable aviation fuel (SAF)-many airlines have committed to replacing 10 of the jet fuel they use with SAF by 2030. The remainder is to come from carbon offset credits and innovation in aircraft and propulsion design, which may include electric or hydrogen propulsion or hybrids. This plan is sensible, but the industry has an opportunity to be bolder in achieving net-zero emissions much faster.
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