Hindustan Times (Lucknow)


- Vanita Srivstava Vanita.shrivastav­a@hindustant­imes.com

NEW DELHI: Experts have cautioned that global warming and increasing carbon dioxide levels in the atmosphere can cause pollen levels to rise which in tur n can further aggravate allergies. A study conducted by researcher­s at Harvard and the University of Massachuse­tts published in the journal PLOS ONE on Wednesday indicates that pollen allergies could increase because of global warming.

“One expected ef f ect of climate change on human health is increasing allergic and asthmatic symptoms through changes in pollen biology. Allergic diseases have a large impact on human health globally, with 10–30% of the population affected by allergic rhinitis and more than 300 million affected by asthma. Pollen from grass species, which are highly allergenic and occur worldwide, elicits allergic responses in 20% of the general population and 40% of atopic individual­s,” the study notes.

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