Experts find 'chemical equator' dividing globe
Scientists have discovered a "chemical equator" that divides the polluted air of the Northern Hemisphere from the largely uncontaminated atmosphere of the Southern Hemisphere.
Researchers found evidence for an atmospheric chemical line about 30 miles wide in cloudless skies in the Western Pacific, with levels of carbon monoxide four times higher on the northern side.
The discovery will provide clues to help scientists model simulations of the movement of pollutants in the atmosphere more accurately, and to assess the impact of pollution on climate, the researchers said in a statement on Tuesday.
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