Warmer winters causing more ice-free lakes in N. Hemisphere

Categories: Big picture
Published on: December 23, 2020

CBC News / Nicole Mortillaro / 23 December 2020

Climate change is having a widespread effect on lakes across the Northern Hemisphere, a new study has found.

The study, published in the journal Geophysical Research Letters, examined 122 lakes from 1939 to 2016 in North America, Europe and Asia, and found that ice-free years have become more than three times more frequent since 1978.

These ice-free years not only threaten the livelihoods of people who depend on them, but they also have the potential to cause deep ecological impacts.

“Ecologically, ice acts as a reset button,” said Sapna Sharma, co-author of the study and an associate professor in the biology department at York University in Toronto.

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