The Earth has lost enough groundwater to thirsty humans to measurably tilt the planet’s axis of rotation1.

The net water lost from underground reservoirs between 1993 and 2010 is estimated to be more than 2 trillion tons. That has caused the geographic North Pole to shift at a speed of 4.36 centimetres per year, researchers have calculated. The results appeared on 15 June in Geophysical Research Letters.

 

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