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flag A wetter summer in New Zealand, linked to La Niña, shortened pollen seasons and eased allergies, but climate change may reverse this trend.

flag A wetter summer in parts of New Zealand, possibly due to a neutral or La Niña climate pattern, may reduce pollen levels and ease allergies, according to Victoria University of Wellington research. flag Rainfall suppresses pollen release and clears it from the air, shortening pollen seasons compared to dry El Niño summers, which extend pollen exposure. flag Data shows a 77-day grass pollen season during a recent El Niño year versus 41 days in a La Niña year. flag Ongoing pollen monitoring in Auckland aims to improve forecasts using ENSO predictions, helping sufferers prepare. flag However, long-term climate trends suggest warmer, drier conditions could increase pollen levels in the future, highlighting the need for continued monitoring.

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