2 out of 3 North American bird species face extinction. How we can save them

As the climate crisis worsens, so does pressure on wildlife. The number of birds in North America has declined by 3 billion in the last 50 years. Brooke Bateman, director of climate science at the National Audubon Society, joins Ali Rogin to discuss why and what can be done to preserve and renew the populations of bird species at risk of extinction.

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