It’s going to rain. Can you smell it?
Being able to smell rain as it approaches isn’t something imagined. There really can be a distinctly heady aroma in the air before it rains. And it’s a smell that I’ve always found calming. In fact, there are several clean, earthy, strikingly pleasing, yet distinctly different smells that many of us associate with rainfall. They occur before, during, and after showers and storms. And all of them are scientifically identifiable.
Before it rains; as the wind begins to pick up and the clouds thicken or roll in, you may become aware of a noticeably fresh scent in the air. That sharp, clear aroma is ozone; a molecule made up of three oxygen atoms bonded together (O3) whose name comes from the Greek verb for smell; ozein. It’s the same gas we associate with the layer of our atmosphere that protects us from too much sunlight.