A new report from the National Audubon Society shows that two-thirds of North America’s birds face major challenges including extinction if global temperatures are allowed to increase 3 degrees Celsius by 2100. However, if temperature rise is limited to 1.5 degrees, the majority of those disruptions can be stopped.
The report, Society Survival by Degrees: 389 Bird Species on the Brink, is a major update of Audubon’s influential 2014 Birds and Climate Change Report, which examined the impacts and range shift of 588 birds in North America under various climate scenarios. In the new report, researchers looked at data for 604 species collected from 70 sources including over 140 million individual records of birds. They were able to overlay this information with data on human land use, agriculture, and urbanization trends that were not available in 2014. The researchers were able to model this data at a resolution of one square kilometer, 10 times finer than the scale used in the 2014 report.
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