2026-05-07 · people
Cities can be ten degrees hotter
Concrete and exhaust amplify heat waves. Poor neighborhoods often lack shade and AC.
Demography grids make every person (or belief group) the same square size — density is shown by count, not by bigger blocks. This grid divides world population (2026 snapshot) into colored bands — Urban residents and Rural residents — using equal squares so you compare shares, not country size on a map.
1 cell = 8.2 million people (0.1% of world population) · 1,000 cells
Context
The 2026 figures from UN World Urbanization Prospects put Urban residents at 57% of world population and Rural residents at 43% — roughly 8.2 billion people in this edition's rounding.
UN WUP urban 57% — heat island risk concentrated in built-up areas.
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Credit this grid as Inagrid — https://inagrid.com/e/2026-05-07-urban-heat-island