Climate Change Is Driving Longer More Severe Pollen Seasons Study Finds
In a study published last week in the Proceedings of the National Academy of Sciences, researchers found that on average, pollen seasons in North America lengthened by 20 days and contained 21% more pollen since 1990. The culprit, they found, is increased atmospheric temperatures and levels of carbon dioxide. Researchers have studied the growing pollen season and the effects of warming temperatures on pollen production in controlled settings for decades....