In winter, with freezing temperatures, these compounds evaporate less readily. This means fewer smells are present in the air, particularly unpleasant odors like garbage, car exhaust, or heating oil.

Snow in New York City will take on smells from the city, experts say, whereas snow in the Swiss Alps will take up odors from ...

One thing that seems certain is that there is less snow to smell nowadays. A U.S. Environmental Protection Agency study found snow cover across North America decreased at a rate of just over 2,000 ...