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” - 1 Ki - 1 Weon Seo - 1 Surendra Adhikari - 1 Adhikari - 1 Seo - 1 ” Adhikari - 1 “ - 1
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☆ Humans pump so much groundwater that Earth’s axis has shifted, study finds
  + stars: | 2023-06-26 | by ( Mindy Weisberger | ) edition.cnn.com   time to read: +5 min
CNN —Humans’ unquenchable thirst for groundwater has sucked so much liquid from subsurface reserves that it’s affecting Earth’s tilt, according to a new study. That shift is even observable on Earth’s surface, as it contributes to global sea level rise, researchers reported in the study published June 15 in the journal Geophysical Research Letters. Seo and his colleagues had questions about long-term changes to the axis — specifically, how groundwater contributed to that phenomenon. Revealing groundwater extraction’s impactShifts in Earth’s axis are measured indirectly through radio telescope observations of immobile objects in space — quasars — using them as fixed points of reference. The redistribution of groundwater tilted Earth’s rotational axis east by more than 31 inches (78.7 centimeters) in just under two decades, according to the models.
Persons: ”, Ki, Weon Seo, Surendra Adhikari, Adhikari, Seo, ” Adhikari, “, ” Seo Organizations: CNN, Research, Seoul National University, Jet Propulsion Laboratory, NASA Locations: South Korea, North America, India
☆ The Earth has tilted on its axis differently over the last few decades due to melting ice caps
  + stars: | 2023-03-21 | by ( Aylin Woodward | Marianne Guenot | ) www.businessinsider.com   time to read: +7 min
Earth's axis — the invisible line around which it spins — is bookended by the north and south poles. But their geographic locations aren't fixed: As the Earth's axis moves, so do the poles. If you average out thousands of years of observation the Earth's axis points in a single direction — toward the North Star, also known as Polaris. The recent change to Earth's axis won't affect our everyday lives, but it could slightly tweak the length of our days. But let's be clear that this would be a tiny, tiny, tiny effect," he said.
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