The UN challenges five centuries of cartography
summary
The United Nations has endorsed a new map projection called Equal Earth to replace the long-standing Mercator projection. This shift is driven by the need to correct geographic distortions that inflate the size of Northern nations and diminish the Global South. By prioritizing area accuracy over navigation, the UN aims to promote a more equitable global perspective. This change represents an act of cognitive justice and a move toward decolonizing how the world is visualized.
key points
- The Mercator projection, while useful for sea navigation, severely distorts the size of landmasses far from the equator, making Europe and North America appear disproportionately large.
- Previous attempts to fix this, such as the Gall-Peters projection, achieved area accuracy but created extreme vertical distortion that made the maps visually unappealing.
- The Equal Earth projection solves these issues by using curved lines to maintain relative size accuracy without the extreme stretching seen in earlier alternatives.
who should read it
People interested in geography, international relations, and social justice who want to understand how map projections influence global perception.
discussion mixed
consensus
Commenters generally agree that all map projections involve inherent trade-offs between area, distance, and shape. While there is a divide over whether the UN resolution is a meaningful act of 'cognitive justice' or a purely symbolic gesture, most acknowledge that the Mercator projection is misleading regarding landmass size. There is a broad preference for equal-area projections or physical globes for educational purposes, though some argue that the utility of a map depends entirely on the specific task at hand.
top insight
A key perspective is that the Mercator projection's primary colonial legacy is not necessarily the size distortion of Europe, but the placement of the prime meridian in Greenwich, which centered London on the world map. This suggests that the psychological impact of cartography stems as much from the choice of center-point as from the geometric distortion of landmasses.
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