South cleans up from tornadoes as blizzards advance north

Communities from Texas to Florida began assisting survivors and cleaning up Thursday after tornadoes left scattered destruction and at least three people dead across the South. To the north, blizzards continued to pound the ...

What is a flash drought? An Earth scientist explains

Many people are familiar with flash floods—torrents that develop quickly after heavy rainfall. But there's also such a thing as a flash drought, and these sudden, extreme dry spells are becoming a big concern for farmers ...

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