Melting polar ice is slowing the Earth's rotation, with possible consequences for timekeeping

NBC News ^

[MNDude]

Global warming has slightly slowed the Earth’s rotation — and it could affect how we measure time.

A study published Wednesday found that the melting of polar ice — an accelerating trend driven primarily by human-caused climate change — has caused the Earth to spin less quickly than it would otherwise.

[Elsie]

Wow, that is BS on another level

No, it's like a skater that pulls his arms in to spin faster, lets them extend to slow down.

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https://en.wikipedia.org/wiki/Angular_momentum#Conservation_of_angular_momentum

[Elsie]

https://en.wikipedia.org/wiki/Angular_momentum#Conservation_of_angular_momentum

[Elsie]

You’d lose.

[Elsie]

We have some seriously math challenged Freepers today.

[Elsie]

I know that a cubic foot of water is heavier than a cubic foot of ice.

[Elsie]

Trust the Science!

The Science is right, it's the NEWS than can't report correctly half the time.

[Elsie]

What is the mechanism for slowing or accelerating rotation?

I just posted it...

[sauropod]

Cow patties.

[mdmathis6]

True...water will expand when freezing so lop off the extra to keep it at 1cubic foot ..and viola... frozen water at 1 cubic foot will weigh less than 1 cubic foot of water at liquid state...
Yeah I know...the autist in me had go thru the thought process...so sue me!

[Nachoman]

I’m waiting for someone to declare climate change will cause the earth’s magnetic poles to flip.

[Elsie]

The melting polar ice is a mass close to the axis the earth spins around. As the ice melts, it flows DOWNHILL to the ocean, where the seas gradually rise (mass is moving!) the mean radius of the earth is now slightly larger, thus, to conserve the angular momentum, the spinn rate slows down.

Ya got an office chair that spins freely?

Try it your self!

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https://www.scientificamerican.com/article/bring-science-home-spinning-chair/

[Elsie]

https://www.scientificamerican.com/article/bring-science-home-spinning-chair/

[dkGba]

I think only thing rising that fast is the pile of sh*t spouted

[Political Junkie Too]

One study in Nature by Duncan Agnew.

Two articles on the study from the LAAP-dog media, one from NBC and one from CBS.

NBC News: Melting polar ice is slowing the Earth's rotation, with possible consequences for timekeeping

Excerpt:

A study published Wednesday found that the melting of polar ice — an accelerating trend driven primarily by human-caused climate change — has caused the Earth to spin less quickly than it would otherwise.

CBS News: U.S. Earth is spinning faster than it used to. Clocks might have to skip a second to keep up.

Excerpt:

For the first time in history, world timekeepers may have to consider subtracting a second from our clocks in a few years because the planet is rotating a tad faster than it used to. Clocks may have to skip a second — called a "negative leap second" — around 2029, a study in the journal Nature said Wednesday.

That's global warming for you...

-PJ

[Elsie]

And let the lawyers get some of my money?

No way, Dude!

We’ll settle outta court. Maybe over a couple of beers.

[Elsie]

I don't know if we know what actually causes this.

I know that I don't know!

[Elsie]

Al Gore has said that “sea level could be rising as much as 20 feet in the near future.”

How much lower can Lake Bonneville go?

[Elsie]

Click link for full size

https://external-content.duckduckgo.com/iu/?u=http%3A%2F%2Fwww.thecampingcanuck.com%2Fwp-content%2Fuploads%2F2016%2F12%2Fleap-seconds.jpg&f=1&nofb=1&ipt=c263dfd9fcd403c2277e012682de8763c664ac5411cef56a8181aa472dc5be68&ipo=images

https://what-if.xkcd.com/imgs/a/26/leap_graph.png

https://jjy.nict.go.jp/mission/leapsecond2017-e.jpg

[DarthVader]

Climate change is a hoax and these things don’t really apply. Big deal!

[mdmathis6]

LOL! I’ll buy!