U.S. pollution regulations meant to protect people from dirty air are also saving North America’s birds, according to a new study.
Improved air quality under a federal program to reduce ozone pollution may have averted the loss of 1.5 billion birds during the past 40 years, the study found. That’s nearly 20% of bird life in the United States today.
The study, conducted by scientists at Cornell and the University of Oregon, published Nov. 24 in the Proceedings of the National Academy of Sciences. MORE