A Number of Affected as Rough Air Hits Delta Flight Landing at Sydney, Australia

Multiple passengers and crew sustained injuries after a Delta Airlines flight from LA to Sydney encountered turbulence Friday morning.

Delta Flight 41 "experienced a brief period of turbulence" as it touched down at the Sydney airport, a company official informed. Four flight attendants were injured.

Local paramedics said they treated five patients, and took a trio to hospital with non-life-threatening injuries that such as pain in the back and headaches. Those affected spanned from their thirties and seventies.

The event represents the most recent case of aircraft encountering turbulence, with experts indicating that shifting climate patterns is a key driver.

There were 245 passengers and a crew of 15 on the aircraft, the official said, stating that the plane arrived "safely and normally" at Sydney Airport at 06:48 local time on Friday.

The NSW Ambulance Service indicated they got a call just only 180 seconds before the plane arrived, and ambulances were waiting on the tarmac.

Why in-flight bumpiness is growing increasingly prevalent - and more severe.

During the past year, 25 people sustained injuries when another Delta jet, on a route from Salt Lake City, Utah to Amsterdam, encountered "significant" rough air just 120 minutes into the transoceanic journey, and was forced to make an unscheduled landing.

Recently, passengers and crew on a certain international flight experienced a frightening short but intense period of extreme instability. An individual passed away and many were hurt, as individuals not fastened in lifted out of their seats and crashed back down.

Bumpy air is fairly routine during flights, and while cases of strong or severe turbulence appear to be increasing, they are still very rare.

Estimates show that there are approximately five thousand cases of severe or worse turbulence annually, out of a sum of over 35 million aircraft departures that now take off globally.

Intense turbulence is defined as when the vertical motions of a jet passing through disturbed air exert in excess of a significant G-force on your body - sufficient force to throw you from your seat if you did not have on a safety belt.

As global warming alters the conditions in the sky, experts warn that flying could become less smooth: temperature changes and changing jet streams in the jet stream level are projected to boost the regularity and severity of dangerous in-flight bumps.