Another predicted consequence of global warming:
transatlantic flights could get more turbulent and more expensive by the middle of the century, as the jet stream becomes more unstable:
The study, published in Nature Climate Change, suggests that by mid-century passengers will be bounced around more frequently and more strongly.
The zone in the North Atlantic affected by turbulence could also increase.
"The probability of moderate or greater turbulence increases by 10.8%," said Dr Williams. "'Moderate or greater turbulence' has a specific definition in aviation. It is turbulence that is strong enough to bounce the aircraft around with an acceleration of five metres per second squared, which is half of a g-force. For that, the seatbelt sign would certainly be on; it would be difficult to walk; drinks would get knocked over; you'd feel strain against your seatbelt."