Lambert KA, Katelaris C, Burton P, et al. - Given a high prevalence of pollen allergy globally, and a role of pollen exposure itself in emergency department presentations and hospitalizations for asthma, researchers investigated the links between exposure to multiple pollen types and lung function as well as markers of airway inflammation at 8 and 14 years of age. They also focused on potential modification by residential greenness. This study involved a cohort including high‐risk children residing in Sydney, Australia. At 8 and 14 years of age, spirometry and fractional exhaled nitric oxide were recorded. Decreased lung function in 8‐year‐olds was noted in relation to Casuarina, cypress and Pinus pollen in the air the day prior to measurement and 3 days prior respectively. The pollen exposures were found to be related to declines in FEV₁ and FVC; however, no change in the FEV₁/FVC ratio was evident. No effect modification by greenness was noted because of loss of power. Overall, experts concluded that childhood lung function may be detrimentally impacted by airborne tree pollen of cypress, Casuarina and Pinus and not grass in some regions.