Once upon a time, northern Canada harboured a remarkable kind of freshwater lake, a distinct glacial environment found nowhere else in the Northern Hemisphere. In these special freshwater lakes, known as epishelf lakes, life thrived, effectively cut off from the rest of the world. Many of these hidden lakes formed between 4,000 and 800 years ago. But now there’s just one left, and it won’t last long.
“I would be surprised if the lake lasted for more than a decade,” says physical geographer Derek Mueller. “It could go really at any time.”
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Jimmy Thomson 