this post was submitted on 16 Jul 2024
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The climate crisis is causing the length of each day to get longer, analysis shows, as the mass melting of polar ice reshapes the planet.

The phenomenon is a striking demonstration of how humanity’s actions are transforming the Earth, scientists said, rivalling natural processes that have existed for billions of years.

The change in the length of the day is on the scale of milliseconds but this is enough to potentially disrupt internet traffic, financial transactions and GPS navigation, all of which rely on precise timekeeping.

The length of the Earth’s day has been steadily increasing over geological time due to the gravitational drag of the moon on the planet’s oceans and land. However, the melting of the Greenland and Antarctic ice sheets due to human-caused global heating has been redistributing water stored at high latitudes into the world’s oceans, leading to more water in the seas nearer the equator. This makes the Earth more oblate – or fatter – slowing the rotation of the planet and lengthening the day still further.

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[–] autotldr@lemmings.world 3 points 4 months ago (1 children)

This is the best summary I could come up with:


The climate crisis is causing the length of each day to get longer, analysis shows, as the mass melting of polar ice reshapes the planet.

The change in the length of the day is on the scale of milliseconds but this is enough to potentially disrupt internet traffic, financial transactions and GPS navigation, all of which rely on precise timekeeping.

The length of the Earth’s day has been steadily increasing over geological time due to the gravitational drag of the moon on the planet’s oceans and land.

The planetary impact of humanity was also demonstrated recently by research that showed the redistribution of water had caused the Earth’s axis of rotation – the north and south poles – to move.

“We can see our impact as humans on the whole Earth system, not just locally, like the rise in temperature, but really fundamentally, altering how it moves in space and rotates,” said Prof Benedikt Soja of ETH Zurich in Switzerland.

The research, published in the Proceedings of the National Academy of Sciences of the USA, used observations and computer reconstructions to assess the impact of melting ice on the length of the day.


The original article contains 608 words, the summary contains 193 words. Saved 68%. I'm a bot and I'm open source!

[–] cfi@lemmy.world 4 points 4 months ago

Oh good, in a few years corporations will make us work longer for the same pay