Multiple Injured as Rough Air Strikes A Delta Airlines Plane Arriving in Sydney, Australia

Several people were hurt when a Delta aircraft originating in Los Angeles to Sydney experienced significant turbulence Friday morning.

Delta Flight 41 "experienced a brief period of turbulence" as it landed at the Sydney airport, an airline spokesperson stated. Four flight attendants were injured.

The New South Wales Ambulance Service said they treated a total of five people, and transferred three of them to the hospital with non-life-threatening injuries that comprised back pain and headaches. The injured ranged from their thirties and seventies.

This marks the most recent case of commercial jets experiencing atmospheric disturbance, with experts saying that climate change is a significant contributor.

The aircraft was carrying nearly 250 travelers and a crew of 15 on the aircraft, the representative said, adding that the plane landed "without further incident" at Sydney Airport at shortly before 7 a.m. on Friday morning.

Emergency responders reported they were alerted just three minutes before the plane arrived, and ambulances were waiting on the tarmac.

Why in-flight bumpiness is becoming more common - and more severe.

Last year, two dozen individuals were injured when another Delta jet, flying from Salt Lake City, Utah to Amsterdam, Netherlands, experienced "severe" atmospheric disturbance just a couple of hours into the transoceanic journey, and had to make an precautionary landing.

Recently, passengers and crew on a Singapore Airlines flight experienced a harrowing five seconds period of extreme instability. A traveler lost their life and numerous people sustained injuries, as unbelted passengers were thrown from their seats and fell back down.

Turbulence is a common occurrence on aircraft journeys, and while cases of strong or severe turbulence appear to be increasing, they are remained quite uncommon.

Estimates show that there are an estimated five thousand cases of severe-or-greater turbulence annually, out of a sum of more than 35 million aircraft departures that now take off around the world.

Severe turbulence is categorized as when the vertical motions of a aircraft going through disturbed air apply greater than 1.5 times the force of gravity on your body - enough to throw you from your seat if you did not have on a restraint.

As global warming shifts the conditions in the sky, experts warn that commercial aviation could become more turbulent: temperature changes and shifting wind patterns in the jet stream level are expected to heighten the occurrence and strength of significant turbulence.