The plane suddenly feels like it’s dropping out of the sky: Even for a passenger with a sturdy stomach, turbulence is at best unpleasant. Research shows this phenomenon is becoming more and more common. What causes it – and could it ever damage the plane? The increasing turbulence of commercial flights due to climate change is a focus on the dpa trends wire this week. We’ve also looked at the lure of California’s food scene and have tried to end the debate over sleeping naked vs sleeping in pyjamas. Coman Hamilton,dpa trends & features \——————– TOP STORY: Buckle up: Severe turbule…