Tying celestial mechanics to Earth’s ice ages

[FoxRox]

As part of her professional organization membership, my wife receives this magazine. The cover caught my eye the other day, and I ended up learning something.

Very interesting stuff here. It ties the multiple ways Earth's orbit changes cyclically over time to the cycle of ice ages as well as human evolution. Not highly political, but does eventually conclude that humans have effectively postponed the next ice age. It would be starting now (over the next couple thousand years), but could be as much as 60,000 years away due to anthropogenic GHG.

https://physicstoday.scitation.org/doi/full/10.1063/PT.3.4474

 

[rb1957]

actually quite widely known … Milankovitch cycles.

Depending where you stand either …
1) has no effect
2) has a small effect
3) has an effect
4) has a significant effect
5) all of the above

another day in paradise, or is paradise one day closer ?

 

[1503-44]

1 through 5, not depending on where one stands, sits, runs or walks.

“What I told you was true ... from a certain point of view.” - Obi-Wan Kenobi, "Return of the Jedi"

 

...or hangs.

"Everyone is entitled to their own opinions, but they are not entitled to their own facts."