
Mathieu Dumberry from the University of Alberta is one of only a few people in the world investigating changes in Earth rotation. Credit: John Ulan for the University of Alberta
Scientists are studying past sea-level changes to make accurate future predictions of this consequence of climate change, and they’re looking down to Earth’s core to do so. “In order to fully understand the sea-level change that has occurred in the past century, we need to understand the dynamics of the flow in Earth’s core” says Mathieu Dumberry, a professor in physics at the University of Alberta.
The connection is through the change in the speed of Earth’s rotation. Melt water from glaciers not only causes sea-level rise, but also shifts mass from the pole to the equator, which slows down the rotation...
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