1.5 billion birds saved by the 1970 US Clean Air Act
A recent study has found that improved air quality from the US Clean Air Act has saved around 1.5 billion birds. Before the 1970 Act, ozone pollution had been damaging their respiratory systems as well as their food sources. This pollution is most harmful to small migratory land birds, which make up 86% of all North American species. The improved air quality and reduced ozone pollution that followed the 1970 passage of the US Clean Air Act and later amendments have saved the lives of 1.5 billion birds across the continent, according to new research. The research shows that pollution regulati...