New research shows Canadian lakes are in hot water over climate change.
A survey of 143 different studies has found lakes everywhere are getting warmer, shallower and more subject to toxic algae blooms.
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Researchers say cold-water fish like lake trout are being pushed aside by others, such as smallmouth bass.
They found lakes in northern latitudes like Canada’s are experiencing the most rapid changes.
And they say those changes are driven by more ice-free days and greater evaporation.
The paper was published in the journal Bioscience.