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U.S. Air Pollution Was Once So Bad, Birds Turned Black

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Summary | 3 Annotations
Looking at more than 1,300 birds from five species that flew over the Rust Belt and were contained in natural history collections, two graduate students—Shane DuBay and Carl Fuldner from the University of Chicago—were able to tell how much black carbon, also known as soot, accumulated in bird feathers during the year it was collected
2017/10/12 07:10
Black carbon is a type particulate matter emitted largely by gas and diesel engines and coal-fired power plants. The particles effectively absorb sunlight and prevent it from being reflected into the atmosphere
2017/10/12 07:11
Using data from the birds, DuBay and Fuldner were able to see how black carbon levels corresponded to historical data on U.S. environmental regulations or fuel consumption
2017/10/12 07:11