Glaciers along the Continental Divide, Alberta, May 2007. Glacier- and snow-fed systems provide the backbone of water supply not only in Western Canada but also in many other regions in the world.
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Water goes 'missing' with snow loss

A new study finds that if temperatures rise and more precipitation falls as rain rather than snow, it will reduce the total amount of water in rivers.

It is a surprising observation. One might expect the timing of water flow to change but not the overall volume.

Dr Ross Woods from Bristol University told our correspondent Jonathan Amos that the finding ran counter to what everyone had thought for a long time.

  • 20 May 2014
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