Massive Chinese Dust Cloud Sweeps Across U.S.
If you think the air is hazier than usual, you’re right: a massive cloud of dust containing bits of rock, dinosaur fossils and even particles of mummies is floating over the United States. It also contains carbon dioxide, arsenic, sulfur, ozone, flurocarbons and the greenhouse gases that causeglobal warming. “There’s hundreds of tons of dust in it,” says Russ Schnell of NOAA.
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