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Derecho Sweeps Across Midwest
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Published December 16, 2021
Hurricane-force winds, dust storms, tornadoes, wildfires, snow squalls, heavy rain, and record-breaking heat accompanied an unusual December storm system.
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Satellites Spot Tornado Tracks Across Midwest
Published December 13, 2021
Preliminary reports suggest one tornado may have traveled nearly 200 miles, causing severe damage and human losses in Kentucky and three other states.
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La Niña Returns for a Second Winter
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This coupling of the atmosphere and ocean alters atmospheric circulation and jet streams in ways that intensify rainfall in some regions and bring drought to others.
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The Nile Delta’s Disappearing Farmland
Published December 15, 2021
Rapid population growth and expanding cities are eating away at one of Egypt’s most precious resources.
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North Patagonia Icefield, Southern Andes
Published December 12, 2021
The mountain peaks here reach high enough and temperatures remain cold enough year-round that permanent ice persists amid a warming world.
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A Deadly Day on Mount Semeru
Published December 11, 2021
Flows of superheated ash and tephra mixed with rain to create destructive rivers of debris on the Indonesian volcano.
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