1. UCAR Magazine

    Tracking pollution from the Wallow wildfire

    Hazy skies and fiery sunsets were noted across much of the central United States after the huge Wallow Fire developed in Arizona. But there’s also a quantitative way to track fire’s impact on the surrounding air.

    • Air Quality

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  2. Paved surfaces can foster build-up of polluted air

    New research focusing on the Houston area suggests that widespread urban development alters weather patterns in a way that can make it easier for pollutants to accumulate during warm summer weather instead of being blown out to sea.

    • Air Quality

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  3. Pollution over Mexico City

    Pollution’s second wind

    The air in the vicinity of Earth’s biggest urban areas includes a wild variety of constituents emitted by cars, factories, trees, and much more. Tracking the fate of such air as it spreads outward is no simple task.

    • Air Quality

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  4. Ozone recovery and greenhouse gases in the Southern Hemisphere

    A new study looks at how the anticipated recovery of the ozone hole over Antarctica and simultaneous increase in greenhouse gas concentrations will combine to affect weather and climate in the Southern Hemisphere.

    • Climate,
    • Air Quality

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  5. A high-resolution infrared Fourier transform spectrometer is pictured.

    Cold vortex puts a northern spin on ozone loss

    The return of sunlight in polar spring means ozone destruction above the Antarctic—and, in 2011, above the Arctic.

    • Air Quality

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