Climate change may trigger allergies in 109 million Americans in high-risk areas

A new Natural Resources Defense Council report states individuals living in cities nationwide, including Atlanta, Philadelphia, Chicago, Phoenix and Los Angeles, are more likely to find it difficult to breathe and suffer from allergy symptoms because of climatic warming.Approximately 109 million residents nationwide are most vulnerable and expected to experience the effects of increases in ragweed pollen and ozone smog pollution as the climate changes, according to the NRDC’s Sneezing and Wheezing: How Climate Change Could Increase Ragweed Allergies, Air Pollution and Asthma report.