The sight of a white cloud-like trail streaming behind a plane “set against a bright blue sky creates a romantic image of aviation”, said Aerospace Global News. But their existence “also represents the darker side of flying”.These innocuous-looking trails “are one of the most urgent yet solvable climate challenges facing aviation today”, said Google, which is taking part in a £5 million trial known as Operation Blue Skies headed by the UK government. Together, they are looking to explore whether tweaking flight paths could address this problem.
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