There's a good chance you should be cleaning your outdoor furniture more often than you think—we asked two experts for ...

Pollen trackers can help you decide when to go outside. The American Academy of Allergy Asthma and Immunology tracks levels through a network of counting stations across the U.S. Counts are ...

Pollen count. Pollen is one of the most common triggers of seasonal allergies, according to the Asthma and Allergy Foundation of America. A pollen count, which is how much pollen is in the air ...

By examining fossil leaves, wood, pollen, and other botanical remains, researchers reconstruct environmental conditions and reveal patterns of climate change over geological time scales.