If even hearing the word "ragweed" makes your eyes water, you might be one of the nearly 45 million Americans with seasonal allergies. And allergists say the number of people with sensitivities to Ragweed and other plants is growing. As it turns out, the rise in allergies and asthma is fueled by climate change…Researchers do this kind of pollen collection all over the country, and they’ve seen trends emerge. Dr. Leonard Bielory of Rutgers University has been studying the connection between pollen levels and the throngs showing up at his office. "I saw a hidden signal in the pollen count changing over time," he says. "And I started correlating that we’re seeing patients earlier and the volume seems to be increasing. And some who were moderate or mild in years past are now more severe."
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