One Wobbly Thing: The Earth’s Shifting Axis

Image: NASA Jet Propulsion Lab

A study published recently in the journal Geophysical Research Letters found that the Earth’s axis, which shifts naturally, is now shifting 17 times faster than before 1981. Scientists use satellites that track gravity to assess “polar drift” and what they have discovered is that water is the greatest cause of the shifts.  Even more unnerving is the authors’ finding that the poles actually began moving in a new direction quite suddenly and rapidly starting in 2000. This speed-up in the shifting of the poles had been identified in prior research, which attributed it to ice loss in Greenland and West Antarctica as well as the pumping and use of groundwater.  Experts said it is another sign of the ways that man is fundamentally altering the planet.

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SpaceX Launch Damages Nearby Ecosystems

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One Cool Thing: Dark Sky Tourism on the Rise

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Is “Relatively Clean” Spaceflight, Clean Enough?

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In the span of two weeks, two of the world’s richest men blasted off to suborbital space with the intended goal of promoting commercial spaceflight. This past week, Amazon founder and billionaire Jeff Bezos took his trip on Blue Origin’s New Shepard rocket. This prompted questions about the environmental impact of private space travel.  The […]

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