We find large relative increases in CAT, especially in the mid-latitudes in both hemispheres, with some regions experiencing several hundred per cent more turbulence. The busiest international airspace experiences the largest increases, with the volume of severe CAT approximately doubling over North America, the North Pacific, and Europe.
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Severe turbulence is becoming more frequent and intense due in part to climate change.Research indicates that rising CO2 levels in the atmosphere cause disruptions to the jet streams and create dangerous wind shears that greatly increase turbulence, especially at moderate latitudes where the majority of air travel occurs…
… According to a study by professor Paul D. Williams and his colleagues at the University of Reading in the UK, CAT is expected to more than double by midcentury, and turbulence “strong enough to catapult unbuckled passengers and crew around the aircraft cabin” is expected to double or triple.
There’s an economic cost, too. Turbulence is already costing US airlines $200 million per year, with damage to aircraft plus injuries to passengers and crew. That number will skyrocket as extreme incidents increase. Costs are passed on to consumers and used to justify cuts to pay, benefits, and staffing levels for crew….