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  1. Earth

    Seasonal Weather

    The Aboriginal people of Australia had their own way of defining the seasons, based on local weather patterns. Australia’s Bureau of Meteorology has created a Web site that illustrates several of these seasonal weather calendars, established thousands of years ago. Unlike the European and American spring, summer, autumn, and winter, the indigenous versions often include […]

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  2. Earth

    Ash Clouds: Severe storms can lift smoke into stratosphere

    New field observations, satellite images, and computer models suggest that a severe thunderstorm, enhanced by heat from forest fires, can boost soot, smoke, and other particles as far as the lower stratosphere, an unexpected phenomenon.

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  3. Earth

    Ash Clouds: Severe storms can lift smoke into stratosphere

    New field observations, satellite images, and computer models suggest that a severe thunderstorm, enhanced by heat from forest fires, can boost soot, smoke, and other particles as far as the lower stratosphere, an unexpected phenomenon.