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Earth's cooling uneven over 400 million years, study finds
NewsBytes | April 29, 2026 3:39 PM CST

Pacific seafloor cools faster than Africa

Most of Earth's internal heat escapes through ocean floors, and the Pacific Ocean is leading the charge.
Thanks to its huge seafloor and thinner crust, it's been cooling about 50 kelvins more than Africa's side over millions of years.
Basically, where you are on Earth really affects how quickly things cool down beneath your feet.


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