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Power plant smokestacks spew white pollution into the sky on a sunny day.
Wildfire smoke billowing above a distant forested hill.
Bridge and clock tower over Charles River in Harvard University campus in Boston with trees and blue sky.
Welder  with a face shield working on a steel beam in a warehouse.
bird flu killing wildlife
Tony Armstrong-Sly/Flickr

Eagles are falling, bears are going blind

Bird flu is already a tragedy.
Bird flu outbreaks: When will we learn our lesson?

Bird flu outbreaks: When will we learn our lesson?

Experts say previous outbreaks should have taught us how to avoid new ones, like the one that’s killing millions of birds right now.
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