It may have been a snowy winter this year in the Rocky Mountains, as it was in many areas of the US, but new research of tree rings from the US Geological Survey shows that the long term trend is solidly towards less snowpack. In fact the decrease since the 1980s is more significant that "at any other time in the past 1,000 years", the New York Times reports.
One more example of how you can't really use the snowfall from one year to determine the long term trend (or rainfall or heat or cold).More on Global Climate Change
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