Groundwater depletion

Mexico City Sinking at Alarming Rate Visible From Space

Mexico City is experiencing alarming subsidence, sinking at a rate of nearly 10 inches annually, a phenomenon observable even from space. This rapid sinking is primarily attributed to extensive groundwater pumping exacerbated by urban development, which has depleted the city’s aquifer. The consequence is significant damage to critical infrastructure, including the subway and water systems, and a worsening water crisis. New satellite imagery from NASA is providing unprecedented detail on these changes, aiding researchers in understanding and planning mitigation strategies for this century-old problem.

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Earth’s Tilt Shifts 31.5 Inches Due to Groundwater Pumping: Fact or Fiction?

Pumping groundwater has significantly altered Earth’s rotation, causing a 31.5-inch tilt in less than two decades due to the redistribution of approximately 2,150 gigatons of water. This movement of water, primarily from mid-latitudes like western North America and northwestern India, contributes substantially to sea-level rise, adding 0.24 inches. The study confirms groundwater redistribution as the largest climate-related cause of this rotational pole drift. This new understanding of groundwater’s impact on Earth’s tilt and sea levels can inform strategies to mitigate future climate change effects.

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