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Can melting of glaciers cause extinction of rivers?

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Glaciers replenish themselves. Every year, winter adds new snow to the upper reaches of a glacier while summer melts off the lower reaches. When less snow melts off in the summer than is added in the winter, the glaciers expand. If this goes on long enough, we move into an ice age. read more

The dramatic melting of the world’s mountain glaciers – from the Alps to the Himalayas – is mostly the result of man-made global warming rather than natural variability in the climate, a study has found. read more

But these new lakes can suddenly burst through weak spots in the melting ice or moraines, sending water barreling downstream. As well as delivering pulses of sediment, GLOFs can cause rivers to flood, widen, or alter course. read more

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