A new study shows that the shape of urban trees affects how pollen travels through the air, which could help cities reduce ...

SEATTLE — Anyone dealing with seasonal allergies is bracing for what's coming. But now might be a good time to get ahead of the sniffles and watery eyes. The typical culprit this time of year is tree ...

Cedar, elm and maple trees in Oklahoma are causing issues for Oklahomans with allergies, but the worst of it is almost over.