A looming ice age? Scientists find a striking pattern in Earth's history.
Scientists say small changes in the way the Earth orbits the sun hold the key in major global changes in climate, like ice ...
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If Earth spun sideways on axis, we'd have extreme winters and summers
Following is a transcript of the video. Early in the history of our solar system, something mysteriously knocked Earth slightly off its axis. So today we tilt at 23.5 degrees. But what would ...