Earth’s Rotation

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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Melting ice caps slow Earth’s spin, lengthening days at ‘unprecedented’ rate

I find it intriguing to contemplate how the melting ice caps are influencing Earth’s spin and, consequently, the length of our days. The fact that climate change has already extended our days by about 0.8 milliseconds since 1900 is astonishing. This subtle change might not seem significant at first glance, but when you think about the potential future scenario of days being 2.2 milliseconds longer by 2100 under high emissions, it certainly makes you pause and reflect.

As we delve deeper into the science behind this phenomenon, it becomes evident that it’s not just the melting ice caps that are at play here.… Continue reading