Biology
The Influence of Wind Patterns on Pollen Dispersal and Allergies
Quick fact
A single ragweed plant can release up to a billion pollen grains in one season, and wind can carry them hundreds of kilometres, meaning you might be allergic to plants that aren't even in your neighbourhood.
Why this is interesting
Ever wonder why your allergies flare up on some days but not others, even during the same season? The answer lies in the invisible game of tag between wind and pollen.