Ah-choo! Expect higher grass pollen, allergen exposure in coming century

There will be notable increases in grass pollen production and allergen exposure up to 202 percent in the next 100 years, leading to a significant, worldwide impact on human health due to predicted rises in carbon dioxide and ozone due to climate change. This is the conclusion of researchers who say that while CO2 stimulates reproduction and growth in plants, ozone has a negative impact on plant growth.

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