Fall is in the air. Chicago evenings have a crisp breeze. But something has been bugging Annie Andrews. Specifically, bees and wasps and a whole lot of sneezing. “It’s gotten to a point, like, I ...

Did you know that a single ragweed plant can produce one billion grains of pollen in a season? Or that most pollen that causes allergy problems is so small that it is invisible to the human eye?

Daily heat records are in jeopardy Tuesday and Wednesday, with temperatures at least 20 degrees above the early-January ...