气候变化延长了花粉季节并刺激了生产,加剧了美国各地的过敏问题。 Climate change extends pollen seasons and boosts production, intensifying allergy issues across the U.S.

气候变化正在加剧花粉过敏,延长花粉季节,并由于气温变暖和二氧化碳含量升高而增加花粉产量。 Climate change is worsening pollen allergies by extending pollen seasons and increasing pollen production due to warmer temperatures and higher CO2 levels. 风向条件和风暴也使花粉进一步扩散,产生较小的微粒,深入肺部。 Windier conditions and storms also spread pollen further, creating smaller particles that penetrate deeper into the lungs. 在北卡罗来纳州,较温和的冬季和更长的季节加剧了这一问题,约四分之一的美国成年人患有季节性过敏症。 In North Carolina, milder winters and longer seasons have intensified the issue, with about a quarter of US adults suffering from seasonal allergies.