The impact of global warming on snow pack

The impacts of a warming planet are widespread and diverse. The amount of snow the American west receives each year is a significant factor in how much water is available for agricultural irrigation and human consumption. A new report projects that by the middle of this century there will be an average 56 percent drop in the amount of water stored in peak snowpack in the McKenzie River watershed of the Oregon Cascade Range - and that similar impacts may be found on low-elevation maritime snow packs around the world. The findings by scientists at Oregon State University, which are based on a projected 3.6 degree Fahrenheit temperature increase, highlight the special risks facing many low-elevation, mountainous regions where snow often falls near the freezing point. In such areas, changing from snow to rain only requires a very modest rise in temperature.
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