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

From frozen iguanas falling from the sky to spinning circles of ice on rivers, rare natural events related to the weather remind us that nature doesn't always behave as expected. Whether it's ...

Gesundheit.

While spring brings blooming flowers and leafy tress, it also brings copious amounts of pollen that trigger seasonal allergies. When pollen will reach it's peak depends on the area, however, tree ...