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Mapping the Trends in Pollution
Rick Noack shares the news: "NASA scientists created a series of maps that show the "human fingerprint on global air quality." The images offer insights into air pollution in nearly 200 cities around the world, as well as in neighboring areas."
"To illustrate to what extent pollution has increased or decreased, the NASA researchers measured concentrations between 2005 and 2014. Blue areas indicate a decrease in pollution; orange indicates an increase," adds Noack.
Noack notes the good news: "the scientists concluded that the United States, Europe and Japan have greatly improved their air quality." The bad news, however: "pollution has worsened in parts of China, India and the Middle East."