Here’s what causes airplane turbulence and how to stay safe on a rough flight [Video]

A few incidents this past year have highlighted one kind of unpleasant experience some end up having on airplanes: turbulence. And these kinds of incidents might be getting more common, a union representing flight attendants is warning — thanks to climate change. 

Multiple people were hospitalized this week after a Lufthansa flight routing from Austin, Texas, to Frankfurt, Germany, was forced to make an emergency landing at Dulles International Airport in Virginia due to turbulence. 

The flight, which carried 172 passengers and 12 crew members, according to Lufthansa, was diverted and eventually landed at Dulles around 9 p.m. EST on Wednesday night. The decision came as the plane experienced “severe turbulence” while flying over Tennessee, the Federal Aviation Administration said in a statement to CBS News. Seven people were transported to local hospitals, Dulles airport said. The FAA is investigating.

A similar incident occurred on Thursday, when around 20 passengers and …