Allergy seasons are going to start earlier and will be much more intense because of climate change, according to a study.

According to a new study published in Nature Communications, by the end of the century, the season of high pollen counts could begin as much as 40 days earlier than previous decades.

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Researchers also say pollen counts could climb by 250%.

Allergists recommend monitoring symptoms when they start and to consider taking allergy medication earlier in the season.