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Why no world map can be perfect
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Why no world map can be perfect

So, here’s a fascinating mathematical puzzle: because Earth is a sphere, no flat map can show both the true shapes and the true areas of every place. The Mercator projection is handy for navigation, but it makes regions near the poles look far larger than they are - Greenland, for example, appears comparable in size to Africa. Equal-area maps correct those size distortions, though they warp the shapes of continents and countries instead. A new United Nations resolution encourages wider use of the Equal Earth projection, reminding us that every world map is a thoughtful compromise.
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