From this
BBC article
Aircraft manufacturers, airports and airlines aim to reduce the amount of carbon dioxide produced by new aircraft over the next 15 years by half.
"I know, why don't we get the manufacturers to say that they can fix everything? By the time 20 years has gone by and they say that they can't fix it ... we'll already be retired." Oh dear, I really am too cyncial for my socks.
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"I tell you, we are here on Earth to fart around, and don't let anybody tell you any different." Kurt Vonnegut, Jr.