What does an iceless Lake Superior portend?

From Duluth, Lake Superior is a colossal expanse of blue this week with no otherworldly ice shards smashed against the shore or colorful fish houses decorating stretches of white.

Too warm in Canada: world's largest ice rink may not open

The Canadian capital's iconic Rideau Canal Skateway—the largest outdoor rink in the world and a UNESCO heritage site—may not open this winter for the first time in five decades, due to a lack of ice.

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