Tag: interactive
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Hard water: the world’s water hardness and the rocks behind it

A world map of water hardness from 16,682 river, lake and groundwater stations, and a simple model that guesses it from the rocks: Scandinavia’s median is 14 mg/l, the Yucatán’s 514.
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Drowned and rising: Britain and the world at every sea level

A bathtub model of every sea level from the Ice Age to an ice-free world. In the model Britain becomes an island at −30 m; at +70 m, 33% of the UK is under water.
Tristan Hotham
