Climate Change Produces More Pollen, Longer Allergy Season - VOA Learning English

Scientists at the University of Michigan say you are right if you think allergy season is getting worse and lasting longer. Climate change makes trees and plants produce more pollen, and start earlier. The bad news is that it will continue to get worse.

Scientists at the University of Michigan say you are right if you think allergy season is getting worse and lasting longer. Climate change makes trees and plants produce more pollen, and start earli… [+2953 chars]

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