Earth's rotation slowing due to climate change, nasa warns

NASA scientists have discovered that Earth's rotation is slowing down, with days now lasting 1.33 milliseconds longer than they did 100 years ago. This unprecedented change, attributed to climate change, has significant implications for navigation, the environment, and human life.

Earth's wobbly spin

Researchers from the University of Vienna and ETH Zurich analyzed over 120 years of data on sea level changes, polar ice melting, and groundwater depletion. They found that the Earth's axis is shifting due to the redistributed mass of water, causing the planet's rotation to slow.

The process, likened to a figure skater extending their arms to slow their spin, is happening at an accelerating rate due to rising temperatures. As the polar ice caps melt, the resulting shift in water mass towards the equator affects the Earth's gravitational balance and, in turn, its rotation.

Consequences of a slowing earth

The impact on modern life may be subtle, but experts warn it's far from trivial. For instance, a slower Earth means GPS and satellite navigation systems will need frequent recalibrations to maintain accuracy. The effects on space exploration and global financial networks are also a concern.

Benedikt Soja, a co-author of the study, emphasized that this finding serves as a tangible proof of how human activities are altering the Earth's physical dynamics. 'Future generations will be even more affected by these changes,' he cautioned.

As the Earth's core may harbor up to 45 times the hydrogen present in the world's oceans, scientists continue to unravel the mysteries of our planet's internal workings.