Ice masses are alive with activity, images reveal.

The speed at which glaciers move changes predictably each year, according to the first-ever global map of how glacier and ice sheet speeds vary with the seasons. Knowing this yearly rhythm could help ...

California may be known as the Golden State, with its shimmering beaches and warm Mediterranean climate. But clinging to the rooftop of the High Sierra are the last remnants of glaciers that have ...

California may be known as the Golden State, with its shimmering beaches and warm Mediterranean climate. But clinging to the rooftop of the High Sierra are the last remnants of glaciers that have ...

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