And it could even affect climate.
Scientists discovered that Earth's tilt has changed because of the amount of ground water pumped by humans.
Earth's tilt has changed by 31.5 inches between 1993 and 2010 because of the amount of groundwater humans have pumped from the planet's interior. In that period, humans removed 2,150 gigatons of water from natural reservoirs in the planet's crust. If such an amount was poured into the global ocean, its surface would rise by 0.24 inches . A new study has now revealed that displacing such an enormous amount of water has had an effect on the axis around which the planet spins. 's rotational pole, the point at which the planet's imaginary axis would stick out of the surface if it were a physical object.
"Earth's rotational pole actually changes a lot," Ki-Weon Seo, a geophysicist at Seoul National University who led the study, said."Our study shows that among climate-related causes, the redistribution of groundwater actually has the largest impact on the drift of the rotational pole." Since the tilt of Earth's axis can have an effect on seasonal weather on the planet's surface, scientists now wonder whether the shifts of the rotational pole could contribute to
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Humans have pumped enough groundwater to change Earth’s spin“Our study shows that among climate-related causes, the redistribution of groundwater actually has the largest impact on the drift of the rotational pole,” lead author Ki-Weon Seo said.
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