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UNDERSTAND YOUR MAP
Equal Earth vs Mercator: why relative area matters
Equal EarthRelative area stays proportional.
MercatorAreas expand increasingly toward the poles.
Neither projection is best for every purpose.
Why every flat map makes trade-offs
Looking for a “true size world map”? No flat projection preserves every geographic property. Equal Earth preserves relative area.
Earth is curved. Flattening its surface changes area, shape, distance or direction, so a world map projection must make trade-offs. Choose the property that matters for your map. USGS explains these trade-offs.
Same Natural Earth data, colors and central meridian (0°). Equal-size frames; each projection is fitted independently, so scales differ. Mercator clips the poles near ±85°. Boundary depiction does not imply endorsement of territorial claims.
Africa vs Greenland: why map projections change what you see
Africa is about 14× the area of Greenland.
Equal Earth preserves this area relationship. A whole-world Mercator map strongly enlarges Greenland.
Read the area comparison
Africa is roughly 14 times Greenland’s area. Equal Earth preserves that visual area relationship; a whole-world Mercator map can make them appear comparable in size. This is why Africa’s true size is often discussed in map education. Compare regions within each map: the two previews here fit their own projections independently. USGS on area distortion.
The diagrams use simplified 1:110 million geography. Small islands may be absent; no region is resized separately.
Same Natural Earth data, colors and central meridian (0°). Equal-size frames; each projection is fitted independently, so scales differ. Mercator clips the poles near ±85°. Boundary depiction does not imply endorsement of territorial claims.
From Mercator to Equal Earth: 1569–2026
Mercator
Navigation-focused conformal projection.
Equal Earth
Equal-area world projection published.
African Union
AU adopts Equal Earth and urges curriculum review.
United Nations
General Assembly adopts A/RES/80/307.
Read the full history
1569 — Mercator
Gerardus Mercator introduced the projection that bears his name. It preserves local angles, and rhumb lines — routes of constant compass bearing — are straight. These properties made it valuable for navigation.
Area grows rapidly with latitude on a Mercator projection. High-latitude regions appear oversized relative to equatorial regions, so a whole-world Mercator map is poorly suited to area comparison. Its navigational value remains. Mercator documentation.
Equal-area maps came earlier
Equal Earth did not invent area-preserving mapping. Earlier projections, including Mollweide, already preserved relative area. Equal Earth offers another choice of outline and distribution of shape distortion. Mollweide documentation.
2018 — Equal Earth
Bojan Šavrič, Tom Patterson and Bernhard Jenny developed Equal Earth. Their research article was published online on .
It is an equal-area pseudocylindrical projection: a world map with curved meridians and straight parallels. Its Robinson-inspired outline combines preserved relative area with familiar-looking continents, offering a visually approachable alternative to projections such as Gall–Peters. Shapes still distort. Read the authors’ paper.
2025 — Correct the Map campaign
Africa No Filter and Speak Up Africa launched Correct the Map in April 2025. The campaign calls for wider use of Equal Earth and representations that do not understate Africa’s relative area. Its arguments about perception and representation are advocacy; the area-preserving property is mathematical. Campaign launch (French).
February 2026 — African Union
At its 39th Ordinary Assembly Session, held on 14–15 February 2026, the AU adopted Equal Earth and urged Member States to revise national curricula accordingly. Assembly/AU/Dec.959(XXXIX), paragraph 12 (PDF) records this political and educational decision. It is not a rule binding the whole world.
4 SEPTEMBER 2026
UN map resolution 2026: Equal Earth and A/RES/80/307
- In favour
- 164
- Against
- 1
- Abstentions
- 6
What it means
The General Assembly called for fairer cartographic representation.
Equal Earth is one relevant equal-area option.
Resolution A/RES/80/307What it does NOT mean
- Mercator was not banned.
- Equal Earth was not made mandatory worldwide.
- Equal Earth is not the single official UN world map.
- No flat projection preserves every geographic property.
DENSYO Map is not affiliated with or endorsed by the United Nations.
Read the decision and its limits
On 4 September 2026, the United Nations General Assembly adopted draft resolution A/80/L.104 by a recorded vote of 164 in favour, 1 against and 6 abstentions. The adopted text is General Assembly resolution A/RES/80/307. It encourages fairer cartographic representation of Africa and other regions. It calls for wider use of equal-area projections, particularly Equal Earth, where the relative sizes of continental landmasses matter. UN meeting coverage, 4 September 2026.
The text was based on draft A/80/L.104, “Correct the map: rebalancing global cartographic representation and promoting equitable representation of the world's regions, particularly Africa.”
Using the decision in context
The summary above explains the limits of this decision. Choose a projection for the purpose of each map.
Mercator remains suitable for uses such as navigation where its conformal properties are useful. DENSYO Map is not affiliated with or endorsed by the United Nations.
Which map projection should you use?
Choose by the property your map needs to preserve.
Equal Earth
Relative area
- World comparison
- Thematic maps
- Area-based data
Mercator
Local angles
- Navigation
- Rhumb lines
- Conformal web-map contexts
Both have useful strengths. Neither projection is best for every purpose.
Detailed projection comparison
Primary purpose
- Equal Earth
- World maps where relative area matters.
- Mercator
- Navigation and uses where local angles matter.
Area
- Equal Earth
- Equal-area: relative surface areas are preserved.
- Mercator
- Not equal-area: apparent area increases toward the poles.
Local angles
- Equal Earth
- Not conformal.
- Mercator
- Conformal: local angles are preserved.
Shapes
- Equal Earth
- Familiar continental outlines, with some shape distortion.
- Mercator
- Small local shapes preserved; large high-latitude regions enlarged.
Constant compass bearing
- Equal Earth
- Not generally a straight line.
- Mercator
- A rhumb line is a straight line.
Whole-world area comparison
- Equal Earth
- Well suited.
- Mercator
- Poorly suited.
Navigation
- Equal Earth
- Not its primary purpose.
- Mercator
- Historically well suited.
Projection properties: PROJ Equal Earth and PROJ Mercator.
Where Equal Earth may be used next
Education
Compare countries and continents in classroom maps.
Publishing
Show relative land areas in books, news and reports.
Data visualization
Use equal-area world views for global thematic maps.
International organizations
Communicate global patterns with balanced relative areas.
Digital products
Create world overviews for educational interfaces.
Equal Earth will not replace every projection.
The right projection depends on the purpose of the map.
Read more: confirmed direction and possible uses
Confirmed direction
- The AU has urged Member States to revise curricula and called for more accurate representation.
- The September 2026 UN resolution encourages appropriate equal-area mapping.
- The AU Commission Chairperson has encouraged international institutions, educational systems, publishers and digital platforms to promote maps reflecting actual land areas. AU communiqué, 4 September 2026.
- Togo’s foreign minister told Reuters that the country hoped to update school geography materials by the end of 2026. This is a stated intention, not a claim of completed implementation. Reuters report.
Likely use cases
These are potential applications, not confirmed adoption commitments.
- Education
- Classroom maps and textbooks comparing the areas of countries and continents.
- Publishing and media
- Books, news, reports and presentations where apparent territorial size affects interpretation.
- Data visualization
- Global population, climate, agriculture, biodiversity or emissions maps where land area matters.
- International organizations
- Global reports and public communication that benefit from balanced relative area.
- Digital products
- World overviews and educational interfaces where equal-area representation is useful.
Equal Earth is not expected to replace every map projection. Navigation, street maps, detailed local mapping and many tiled web maps may be better served by other projections, including Mercator or Web Mercator. The right projection depends on the purpose of the map.
This generator uses simplified Natural Earth 1:110 million data for world-scale illustration, not navigation, legal boundaries or detailed local analysis.
Sources / Further reading
View sources and further reading
- Šavrič, Patterson and Jenny, The Equal Earth map projection, International Journal of Geographical Information Science. Published online 7 August 2018.
- Equal Earth: authors’ projection documentation.
- PROJ: Equal Earth · Mercator.
- USGS: How are different map projections used?
- AU: Assembly/AU/Dec.959(XXXIX), 14–15 February 2026 (PDF).
- AU Commission: Correct The Map communiqué, 4 September 2026.
- UN General Assembly: draft resolution A/80/L.104, adopted resolution A/RES/80/307, and adoption and recorded vote, 4 September 2026. Draft identifier is not presented as the final resolution number.
Changelog
- Improved guidance for first-time map users.
- Added clearer explanations of SVG, PNG and HTML export options.
- Added success and error feedback for downloads and copying.
- Added Equal Earth history and Mercator comparison.
- Added information about the 2026 African Union and UN decisions.
- Improved accessibility and keyboard interaction.
- Historical release: optional download measurement was introduced; this measurement has now been retired.