‘Canaries in the coalmine’: loss of birds signals changing planet

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Billions of birds are disappearing because of humanity’s impact on Earth, global review finds

The world’s birds, described as the planet’s “canaries in the coalmine”, are disappearing in large numbers as the colossal impact of humanity on the Earth grows, a global review has found.

Bird populations are also affected by all the damage caused by human activity, from the destruction of wild habitat, the climate crisis, and pesticides and other pollution, to over-hunting and impacts of alien species and disease. This makes them the best living indicators of global change, the scientists said.

Conservation efforts have been successful at rescuing individual species in specific locations from the brink, but political will and funding are needed to reverse the global decline, the researchers said. “Currently, we’re triaging the species at risk, but we’re not stopping the flow of species towards extinction,” he said. “There’s only so much we can do with site-based conservation.” While conservation work has improved populations of 70 species enough to lower their risk of extinction since 1988, 391 species have deteriorated, the review found.

 

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