Tag: Data bias
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In the shadow of the volcano: who lives near the world’s volcanoes

I mapped all 1,215 of the world’s Holocene volcanoes and the people around them. At least 147 million people live within 30 km of one, and 76 volcanoes have a million or more neighbours.
Tristan Hotham
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Where space rocks land, and why the meteorite record is so lumpy

I mapped 45,715 meteorites from the Meteoritical Society’s catalogue. 65% were found on Antarctic ice and 24% in hot deserts, while the 1,107 seen to fall follow people, not the sky.
Tristan Hotham
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Ancient DNA on the map: 16,496 ancient genomes, placed where and when they lived

I mapped every ancient human genome in the Allen Ancient DNA Resource, 16,496 people, by where and when they lived. 68% come from Europe; the first farmers spread out of Anatolia at about a kilometre a year; and in Britain, none of 76 men before 2500 BCE carried the Y line R1b.
Tristan Hotham
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Every storm since 1851: where hurricanes form, where they hit, and are they getting stronger?

I mapped all 13,186 tropical cyclones in NOAA’s global archive, from depressions to Category 5 typhoons. The number of storms has not changed since 1980, but more of them reach Category 4 or 5 and they peak further from the equator. Before satellites, the record misses too many storms to say much more.
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Every battle in history, mapped

Wikidata knows of 20,202 battles. I mapped the 13,712 with a place and a date, from 3001 BCE to 2026, to find the most fought-over places on Earth, follow the centre of war century by century, and see how much the famous map is really a map of who wrote things down.
Tristan Hotham
