Pollution Cuts the Earth in Half
There’s a real equator?the invisible line that divides the earth’s North from its South?but there’s also a “chemical equator” that divides the polluted air of the North from the relatively clear air of the South. But as the South becomes more industrialized, that pollution may creep south. It can also be blown by the wind, making it even harder to figure out where the pollution originates. But scientists have found a way to IDENTIFY the pollutors! They’ve also learned how to suck pollution out of old chemical landfills by planting trees.
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