Human activities are changing Earth's spin so much that it might affect how we keep time

Tech Insider
A nigh sky full of stars photographed with long exposure
You can't tell from standing on it, but Earth's rotation rate is changing.

Alexandr Gryzlov / Getty Images

Atlantic Ocean currents may be on the verge of collapse, which could plunge Europe into a deep freeze, a new study shows

Tech Insider
greenland ice sheet
The Greenland Ice Sheet could cause Atlantic Ocean currents to shut down.

Reuters/Lucas Jackson

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