The Couch Activist: The World Map is a Lie.

Researched and written by ChatGPT

Most of us grew up looking at roughly the same world map: Canada stretched massively across the top, Greenland looking enormous, Russia dominating half the northern hemisphere, and Africa sitting underneath them looking comparatively modest.

There is just one problem.

That familiar picture of the world is badly distorted.

The map most of us recognize is based on the Mercator projection, created by Flemish cartographer Gerardus Mercator in 1569. And to be fair to Mercator, his map was never really intended to teach schoolchildren how large the continents were compared with one another.

It was designed for navigation.

That distinction matters.

A Round Earth Has to Be Distorted to Become a Flat Map

You cannot take the surface of a sphere and flatten it onto a rectangle without changing something.

Try peeling an orange and pressing the entire peel perfectly flat without stretching, tearing or overlapping it. You cannot do it.

Maps have the same problem.

Cartographers therefore choose what they want a particular map projection to preserve. Depending on the projection, that might be shape, direction, distance or area.

National Geographic explains that every flat-world projection contains some distortion because Earth's curved surface cannot be transferred perfectly onto a flat surface.

National Geographic:
https://education.nationalgeographic.org/resource/map/

That means there isn't really one single "correct" flat map.

But there are certainly maps that are better suited to certain purposes than others.

And Mercator has one enormous weakness when we use it as an ordinary world map.

It seriously distorts size.

Why Mercator Was Actually Brilliant

Mercator's projection solved a very real problem for sailors.

It preserves angles and compass bearings remarkably well. A navigator could plot a constant compass direction as a straight line across the map.

For sixteenth-century ocean navigation, that was extremely useful.

National Geographic's biography of Gerardus Mercator explains that his 1569 map was specifically designed to allow sailors to use latitude and longitude to plot routes.

https://education.nationalgeographic.org/resource/gerardus-mercator/

So Mercator wasn't incompetent.

His map was extraordinarily clever.

The problem came later, when a navigation tool became one of the dominant ways generations of people were taught to visualize the entire planet.

Greenland Is Not Almost the Size of Africa

This is where things get wild.

On a Mercator map, Greenland can look comparable in size to Africa.

In reality, Africa is about 14 times larger than Greenland.

National Geographic specifically points this out when explaining Mercator distortion.

It also gives another excellent example:

On Mercator maps, Alaska can appear larger than Brazil.

In reality, Brazil is roughly five times larger than Alaska.

National Geographic:
https://blog.education.nationalgeographic.org/2017/03/22/a-whole-new-world-in-boston-public-schools/

The distortion increases the farther you travel from the equator.

That means northern countries and regions become progressively inflated.

Canada.

Russia.

Greenland.

Northern Europe.

Alaska.

All appear much larger relative to equatorial regions than they actually are.

Meanwhile, Africa and South America look comparatively diminished.

Canada Looks Absolutely Enormous

As a Canadian, this one is especially interesting.

Canada really is enormous — about 10 million square kilometres.

But Africa is more than three times Canada's area.

Russia is about 17 million square kilometres.

Africa is still substantially larger than Russia.

Yet the visual impression many Mercator maps give us is almost the opposite.

Once you've spent your entire childhood seeing the world depicted that way, those proportions become embedded in your mind.

That is why seeing another projection for the first time can be genuinely jarring.

Africa suddenly looks enormous.

Because Africa is enormous.

The Gall-Peters Map Tried to Fix This

One famous alternative is the Gall-Peters projection.

Instead of preserving the familiar shapes we see on Mercator maps, Gall-Peters prioritizes area.

That means countries appear in much more accurate proportion to one another.

Africa finally looks appropriately huge compared with Europe and Greenland.

South America becomes much more prominent.

Regions closer to the equator are no longer visually minimized simply because of their latitude.

But Gall-Peters comes with its own distortion.

Countries can look stretched vertically near the equator and flattened horizontally toward the poles.

National Geographic discusses that trade-off here:

https://blog.education.nationalgeographic.org/2017/03/22/a-whole-new-world-in-boston-public-schools/

So Gall-Peters isn't the perfect map either.

There isn't one.

Then Came Equal Earth

A newer projection called Equal Earth may be one of the most interesting compromises yet.

It was introduced in 2018 by cartographers Bojan Šavrič, Tom Patterson and Bernhard Jenny.

Equal Earth is an equal-area projection.

That means the relative size of countries and continents is preserved.

Africa is represented proportionally to Canada.

Greenland is represented proportionally to Africa.

Europe is represented proportionally to South America.

But unlike Gall-Peters, Equal Earth tries to keep the continents looking much more naturally shaped.

The developers describe it as a visually appealing equal-area alternative to Gall-Peters.

You can see it here:

https://equal-earth.com/equal-earth-projection.html

And the full Equal Earth map site is here:

https://www.equal-earth.com/

If you're accustomed to Mercator, spend a minute simply looking at Equal Earth.

Watch what happens to Greenland.

Watch Canada.

Watch Russia.

Then look at Africa.

The proportions suddenly make considerably more sense.

What About Robinson and Winkel Tripel?

There are also compromise projections.

The Robinson projection, for example, doesn't perfectly preserve either area or shape. Instead, it tries to make the overall world look reasonably balanced.

National Geographic itself eventually moved toward another compromise projection called Winkel Tripel.

The word "Tripel" refers to its attempt to minimize three types of distortion: area, distance and direction.

National Geographic adopted Winkel Tripel for its signature world maps in 1995.

More information:

https://education.nationalgeographic.org/resource/selecting-map-projection/

That tells us something important.

Professional cartographers aren't arguing that one magical projection finally solved everything.

They're asking a different question:

What is this map supposed to show?

For navigation, Mercator can be excellent.

For comparing the geographic size of countries, it is terrible.

For teaching the general arrangement of the world, something like Winkel Tripel makes sense.

For understanding the true relative area of countries and continents, Equal Earth is much more useful.

Even Google Maps Uses Mercator

Interestingly, Mercator never really disappeared.

Google Maps and many online mapping systems use a variation called Web Mercator.

There is a practical reason.

Web Mercator works extremely well for smoothly zooming from a world view down to streets, buildings and individual locations.

At local scales, the enormous global distortions aren't nearly as important.

National Geographic notes that many popular digital mapping platforms use Web Mercator precisely because it works well technologically for interactive maps.

Again, context matters.

There is nothing sinister about using Mercator for navigation or web mapping.

The mistake is assuming that the resulting world image gives us an accurate visual comparison of landmass size.

It doesn't.

Maps Shape How We Imagine the World

This may be the most interesting part.

A map isn't merely something we consult when we're lost.

It's a mental framework.

If you spend decades seeing northern countries dramatically enlarged while equatorial countries appear smaller, that image becomes your internal model of the planet.

You don't walk around consciously thinking, "Greenland is enormous."

You simply absorb the proportions.

Then someone shows you that Africa could swallow Greenland roughly fourteen times over, and your brain goes:

Wait. What?

That reaction tells us just how powerful visual representation can be.

The Mercator projection wasn't necessarily lying to us.

We were simply asking it a question it was never designed to answer.

And perhaps the best lesson isn't that we need to replace one "wrong" map with one "right" map.

It's that we should probably look at several.

Mercator shows navigation beautifully.

Gall-Peters exposes relative area.

Winkel Tripel gives us a useful compromise.