Western Canada’s risk of water shortages rising

This article discusses the impact of climate change on Canada’s heretofore ample supply of fresh water.

Three years of drought mean Cape Town could become the first major city in the world to run out of water. As the countdown to “Day Zero” continues in South Africa, Canadian scientists are warning that some communities here could face their own water crisis in the not-so-distant future.

The risk that changing weather patterns pose for water supplies is one reason Canadian researcher John Pomeroy is braving frigid winter temperatures to climb a metal observation tower in the shadow of Alberta’s Fortress Mountain.

It appears that a warming climate means the mountain snowpack is melting faster and earlier. As a result, the water is moving through river basins more quickly than in the past and leaving them parched by the end of summer.

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