Audubon Study: ‘Global warming threatens the survival of nearly half the bird species in continental U.S. & Canada’ – ‘Painstakingly careful and thorough research’
'Global warming threatens the survival of nearly half the bird species in the continental United States and Canada'
'The greatest threat our birds face today is global warming,' said Audubon Chief Scientist Gary Langham, who led the investigation. 'That’s our unequivocal conclusion after seven years of painstakingly careful and thorough research.'
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