IATA unveiled a series of roadmaps aimed at providing step-by-step detailing of critical actions and dependencies for aviation to achieve net zero carbon emissions by 2050.
By the middle of this century, most cars and buses should be powered by renewable energy, while bikes, electric trains and your own two feet will continue ..
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New technologies, including one fuel extracted from the atmosphere itself, could make flying more sustainable. But the challenges are many and the timeline is uncertain.