Why does flying attract so much flak when it accounts for just 2% of carbon dioxide emissions? That was the pained question from an audience member at a sold-out Financial Times event I chaired last week on aviation’s future.

Leo Murray, an environmentalist who was one of the panellists, said that when you included flying’s other emissions, the true figure was about 5%. But that still leaves 95% of climate damage coming from elsewhere.

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