As ice sheets melt, more liquid water is settling near the equator. As mass redistributes like this, guess what changes for the earth? All juniors and seniors should have it click in your brains that the moment of inertia of the rotating earth changes ever so slightly, which in turn will affect the angular velocity of the earth due to conservation of angular momentum. As this happens, another consequence will be slight changes in how humans keep and measure time! Interesting applications of the rotational motion we study.
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