Stephen B. Harrison outlines developments in the fast-moving aviation sector as airlines seek alternative sustainable fuels
About 8 gigatonnes of carbon dioxide (CO2) are emitted by the global transport sector each year. Almost half of that is from cars. Just over a quarter from trucks, buses, and lorries. About one eighth from shipping, and another eighth from aviation.
Taking another view, aviation CO2 emissions are 1 billion tonnes per year: similar to the total annual CO2 emissions from Germany or Canada. And aviation CO2 emissions are rising faster than other transport sectors. With this context, the imperative to defossilised the aviation sector becomes clear.
Sustainable aviation is the future
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