"New research suggests that climate change is responsible for longer pollen seasons in the United States and more pollen in the air, as well."

"Among the many disasters climate change is wreaking around the world, scientists have now identified a more personal one: It’s making allergy season worse.

That is the message of a new study in the journal Proceedings of the National Academy of Sciences published on Monday. The researchers found a strong link between planetary warming and pollen seasons that will make many of us dread spring just a little bit more.

According to the new paper, the combination of warming air and higher levels of carbon dioxide in the atmosphere has caused North American pollen seasons since 1990 to start some 20 days earlier, on average, and to have 21 percent more pollen."

John Schwartz reports for the New York Times February 8, 2021. [2]