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World maps get Africa's size wrong: Cartographers explain why fixing it matters

World maps get Africa’s size wrong: cartographers explain why fixing it matters
The Mercator map exaggerates the area of North America and Eurasia while under-representing the size of much of South America and Africa. Credit: NASA's Earth Observatory "Blue Marble" series / Wikimedia Commons

The African Union has endorsed the #CorrectTheMap Campaign, a call for the United Nations and the wider global community to use a different kind of world map. The campaign .

The map most commonly used is called the Mercator projection. Map projections are how cartographers (map makers) "flatten" the three-dimensional Earth into a two-dimensional map.

The Mercator projection was , designed for colonial exploration and maritime trade. But, over the centuries, it has become an all-purpose projection for many governments, educators and companies.

That flat drawing the size of countries closer to the North or South Pole. It exaggerates the area of North America and Eurasia while under-representing the size of much of South America and Africa. As the largest continent in the global south, Africa is a victim of this cartographic inequity.

The #CorrectTheMap campaign calls for a move to the , developed in 2018 by an international team of cartographers. It addresses the distortions found in the Mercator projection.

Controversies over map projections . Since the 1970s, cartographers have discussed how certain projections distort how Earth looks and how people imagine their place in that world.

At the heart of the debates about maps are tensions about what sort of power maps have in the world.

A change in map projections, for the African Union, is about more than correcting a technical flaw. It's also a chance to influence how current and future map users view, talk about and .

The call is a demand for Africans to be represented on their own terms, rather than through that have long diminished their scale and significance.

As , we pay attention to the of maps.

Given that maps help shape how we make sense of the world, the simplest decisions that go into crafting a map can have major .

World maps get Africa’s size wrong: cartographers explain why fixing it matters
The Equal Earth projections. The African Union has endorsed using the Equal Earth Projection as it better represents the true size of the world’s continents. Credit: Strebe, Wikimedia Commons

Maps are not neutral

There are over of the world map. Each one warps the image of Earth in different ways, making the choice of projection a consequential and complicated decision rather than a neutral one.

For example, the Dymaxion projection, developed by the American engineer , was designed to challenge ideas of the north and the south. Others, like the Lambert conformal conic projection, are used extensively in aviation to aid in flight planning.

Maps are a , as well as an information source. Even the lines, colors, symbols and size of regions depicted on maps . They subtly but powerfully educate people, from schoolchildren to world leaders, about who and what matters.

US president Donald Trump's recent interest , citing its large size, was likely influenced by map distortion. The Mercator projection shows Greenland as nearly the same size as Africa, when in reality Africa is about 14 times larger.

Other projections do a better job at more accurately representing the true size of continents. Some projections are better than others for this specific task; for example, the has been used in the past as an alternative to the Mercator projection.

Cartography as a tool of control

Cartography has been a powerful tool of control throughout Africa's history. Topographers and surveyors participated in the European conquest and colonization of Africa, regularly accompanying military expeditions. Map makers in Europe as a landscape to be exploited by populating maps with , resources and blank spaces ready for development—all while often ignoring the mapping traditions and .

The , where European powers assembled with no African representation, was one of the pinnacles of this cartographic and colonial grab and partitioning of the continent.

The Mercator projection is joined by other kinds of western storytelling—found across popular culture, and diplomatic circles—that have , degraded and undersized Africa's place in the world.

Viewed in this light, the public reckoning over the Mercator projection can be interpreted as not just about the visual accuracy of a map, but also the restoration of dignity and autonomy.

Why changing the world map is difficult

Bringing about changes won't be easy.

Firstly, global map production is not governed by a single authority. Even if the United Nations were to adopt the Equal Earth projection, world maps could still be drawn in other projections. Cartographers are frequently commissioned to update world maps to reflect changes to names and borders. But the changes don't always find quick acceptance.

For example, cartographers changed English-language world maps after the Czech Republic adopted the name "Czechia" as its English name in 2016. While making the change was not difficult, broader acceptance has been .

A person's mental image of the world is at a young age. The effects of a shift to the Equal Earth projection may take years to materialize. to move away from Mercator projection, such as by Boston Public Schools in 2017, upset cartographers and parents alike.

Given the African Union's larger , supporting the Equal Earth projection is the first step in pushing the global community to see the world more fairly and reframing how the world values Africa. Mobilizing for the new projection through workshops with educators, diplomatic advocacy, forums with textbook publishers, journalists, and Africa's corporate partners could help move the world away from the Mercator projection for everyday use.

Shifting to the Equal Earth projection alone will not undo centuries of distorted representations or guarantee more equitable global relations. But it's a step towards restoring Africa's rightful visibility on the world stage.

Provided by The Conversation

This article is republished from under a Creative Commons license. Read the .The Conversation

Citation: World maps get Africa's size wrong: Cartographers explain why fixing it matters (2025, August 28) retrieved 9 September 2025 from /news/2025-08-world-africa-size-wrong-cartographers.html
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