A Lufthansa A340 gets prepped for flight at the airport during snow – Photo: Andrew Poure

You’re sitting on a airliner preparing to depart from a major hub in the U.S. midwest, staring out the window. On a clear spring day, you’d pushback and be off the ground in moments, and see the shining Great Lakes and expanses of green fields and trees immediately after takeoff. That day is not today.

No, the scene out your window is white and grey as far as the eye can see. Amber and red strobe lights, from both aircraft and ground vehicles, add to the almost surreal landscape. It’s winter in the northern states.