Question

What are some of the most interesting facts about the Earth's ice ages?

During the last ice age, the location of what is now Boston had more than a full kilometer of ice above it. Toronto had two kilometers. Montréal had more than three. The southernmost edges of the North American ice sheet were in northern Kentucky and West Virginia.

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During the 1800s, scientists came to the consensus that the Earth had experienced a number of ice ages in which large parts of the planet had been covered in ice sheets. During the last glacial maximum, the location of what is now Boston had more than a full kilometer of ice above it. Toronto had two kilometers. Montréal had more than three. The southernmost edges of the North American ice sheet were in northern Kentucky and West Virginia.

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