A new comic strip illustrates just how thick the ice sheets were in the Ice Age

Jun 14, 2013 12:20 GMT  ·  By

Web comics are known to always treat the most recent subjects and to bring a new point of view social issues and much more.

The same can be said by this new XKCD comic strip that gives us all some perspective about what the Ice Ages looked like compared to today’s scenery.

The artist behind the comic decided to take up four different cities and their modern skylines: Toronto, Chicago, Boston and Montreal.

Then he compares them to the thickness of the ice sheets of over 21,000 years ago. Which, in terms of how long the Earth has been around, is not very long ago.

For instance, the Toronto ice sheet stood at 2100 m/6890 ft, while in Montreal it reached 3300 m/10827 ft. The ice sheet was 1250 m/4101 ft thick in Boston and 900 m/2953 ft thick in Chicago.

The data was adapted from “The Laurentide and Innuitian ice sheets during the Last Glacial Maximus,” by A.S. Dyke, as well as other authors.