一群海豹躺在阿拉斯加冰川湾谬尔冰川内的一块浮冰上休息。

A group of seals rests on floating ice in front of muir glacier in glacier bay, Alaska.

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他说，我一点雪也没看到；我做了更多研究后发现，山上的冰川也有可能在50年内完全消失。

'I didn't see any snow,' he says. 'I did more research, and discovered that within 50 years... Its glaciers could be entirely gone as well.'

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冰川融化以及干旱和洪水的风险预计将在今后几十年内加剧。

Glaciers melting and the risk of drought and flooding are projected to increase in coming decades.

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