Polish researchers invent anti-smog sound cannon

In a battle against Poland's constant smog, scientists are testing out a new "cannon" that uses soundwaves to push toxic particles higher into the atmosphere to allow residents to breathe.

Researchers find that iodine in desert dust destroys ozone

When winds loft fine desert dust high into the atmosphere, iodine in that dust can trigger chemical reactions that destroy some air pollution, but also let greenhouse gases stick around longer. The finding, published today ...

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