[SunkenCiv]

Thanks marktwain for that link. Regarding Milankovitch cycles:

Variations in the Earth's eccentricity, axial tilt, and precession comprise the three dominant cycles, collectively known as the Milankovitch Cycles for Milutin Milankovitch, the Serbian astronomer and mathematician who is generally credited with calculating their magnitude. [Milankovitch Cycles and Glaciation]

The tidal transfer of momentum pushes the Earth away from the Sun (from both sides), in the same way that the Earth pushes away the Moon (and prior to its loss of rotational energy, the way the Moon used to push away the Earth) which means that, over time, the Earth has been moving away from the Sun, and continues to do so. This has had a longterm impact on the length of the sidereal year and the angular velocity of the Earth (the farther we get away from the Sun, the slower it goes. Don't argue with me about it, argue with Kepler). IOW, the orbit of the Earth isn't fixed and immutable, even without taking catastrophes into account.

For axial motion fans, look up Chandler Wobble.

[SunkenCiv]

When the Days Were Shorter [alas, a dead link]
Alaska Science Forum (Article #742) | November 11, 1985 | Larry Gedney
Posted on 10/04/2004 10:31:59 AM PDT by SunkenCiv
http://www.freerepublic.com/focus/f-chat/1234919/posts

Earth’s days used to be just 18 hours long, but the Moon changed that
BGR.com | 6 Jun 2018 | Mike Wehner
Posted on 06/07/2018 3:49:48 PM PDT by DUMBGRUNT
http://www.freerepublic.com/focus/chat/3661396/posts?page=13#13

[Bonemaker]

That’s REAL science....way beyond the global warming idiots’
poly sci, women’s studies, etc. degrees.

[Daffynition]

Chandler Wobble, you say?

https://frontiersinzoology.biomedcentral.com/track/pdf/10.1186/1742-9994-10-80

I call it spin-til-you-win/*magnetoreception* ...all our dogs exhibit magnetosensationism. It's studied science. So there.

Ask me all about housebreaking a puppy. That consumes 99% of my day.

[SunkenCiv]

Chandler Wobble kw:

http://www.freerepublic.com/tag/chandlerwobble/index

[SunkenCiv]

• Potato Earth: Gravity satellite reveals what our planet REALLY looks like [3/31/2011]

"The big blue ball is the amount of ocean water compared to the earth, the little one is the amount of fresh water." [20 posted on 01/28/2014 4:56:11 PM PST by central_va]

[SunkenCiv]

Sahara turned to desert in abrupt climate change
July 15, 1999 Web posted at: 4:27 p.m. EDT (2027 GMT)
Associated Press
http://www.cnn.com/NATURE/9907/15/sudden.sahara.ap/

Sahara’s abrupt desertification started by changes in Earth’s orbit, accelerated by atmospheric and vegetation feedbacks
FOR IMMEDIATE RELEASE: 7 JULY 1999
Contact: Harvey Leifert
American Geophysical Union
http://www.eurekalert.org/releases/agu-sad070799.html

Study links solar activity to Earth’s climate
April 13, 1999 Web posted at: 11:40 AM EDT
http://www.cnn.com/NATURE/9904/13/solar.enn/index.html

Planets may influence Earth’s climate
Monday, December 22, 1997
Environmental News Network
http://www.enn.com/enn-news-archive/1997/12/122297/solar.asp