Mongabay: Even as glaciers retreat from rising temperatures worldwide, new research says they could bounce back just as suddenly.
The study, published Sept. 14 in Science, shows that both small mountain glaciers and large ice sheets grew considerably during a short, 150-year cold spell in Canada 8,200 years ago. The results suggest that massive ice sheets are surprisingly sensitive to brief shifts in seasonal temperatures.
Glaciologists had thought that ice sheets, such as Greenland’s and Antarctica’s,…

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