Mastodawn

The Dependence of Earth #Milankovitch Cycles on Martian Mass: https://iopscience.iop.org/article/10.1088/1538-3873/ae2800 -> Tiny Mars’ big impact on Earth’s climate: https://news.ucr.edu/articles/2026/01/12/tiny-mars-big-impact-earths-climate - study shows how red planet’s pull shapes ice ages.

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Bill Minarik Sep 7, 2025

#Sanidine from the Fish Canyon Tuff is essential to understanding the pace of events in the #Cenozoic

High potassium, quickly erupted and cooled, and old enough to have accumulated sufficient 40Ar from radioactive decay. These crystals calibrate neutron flux for 40Ar/39Ar dating. The 28.2 Ma age of the FCT sanidine has been fine-tuned using #Milankovitch cycles of other ash beds in stable sedimentary basins.

photo from MinDat.org by Dan Polhemus

#MinCup25 #Geochronology #DeepTime #Colorado

Niels de Winter Mar 10, 2025

Excellent paper by Thomas Westerhold @sciencemagazine and colleagues using precise dating of marine sediments using astronomical #Milankovitch cycles to tease out the timing of #volcanism and #meteorite #impact during the extinction of the non-avian #dinosaurs
https://www.science.org/doi/10.1126/sciadv.adr8584

Niels de Winter Aug 23, 2024

Cyclostratigraphy of late Cambrian marine sedimentary records and reconstruction of Earth-Moon system parameters

#cyclostratigraphy #astronomy #paleoclimate #Milankovitch #Moon

https://www.sciencedirect.com/science/article/pii/S0031018224004371

Cyclostratigraphy of late Cambrian marine sedimentary records and reconstruction of Earth-Moon system parameters

The Cambrian period is an important era in geological history, marked by numerous major geological and biological events. To better understand these e…

MegatronicThronBanks Aug 2, 2024

I went looking for 'Earth orbital precession' and instead landed on this gem of a page.

If you stumble on a climate denier trying to splurge out some 'natural cycles' bilge, just send them here.

https://science.nasa.gov/science-research/earth-science/milankovitch-orbital-cycles-and-their-role-in-earths-climate/

#seasons #orbits #glaciers #iceages #milankovitch

Milankovitch (Orbital) Cycles and Their Role in Earth's Climate - NASA Science

Small cyclical variations in the shape of Earth's orbit, its wobble and the angle its axis is tilted play key roles in influencing Earth's climate over timespans of tens of thousands to hundreds of thousands of years.

Hari Tulsidas Aug 22, 2023

Scientific sources explain how Milankovitch cycles affect Earth’s climate over long time scales, but they cannot account for the unprecedented rise in global temperatures in the past century. Ignoring human activity could have dire consequences for our planet and future generations.#climate #factcheck #Milankovitch
https://eu.usatoday.com/story/news/factcheck/2023/08/17/no-milankovitch-cycles-dont-cause-modern-global-warming-fact-check/70471408007/

Greenhouse gases, not Milankovitch cycles, drive modern global warming | Fact check

Milankovitch Cycles and solar inertial motion don't explain modern climate change. CO2 does.

USA TODAY

Jim Bowering Jun 28, 2023

Save The Coal
It is good that we are reducing coal-burning. It is important that we don't waste it because we are going to need it. Of course, there's the point of reducing the amount of carbon dioxide in the atmosphere to curtail warming. We certainly don't want to change the temperature of the atmosphere to the point where the climate reg
https://greencomet.org/2023/06/28/save-the-coal/

#astronomy #climate #iceages #milankovitch #science #seasons #space #weather

Save The Coal

It is good that we are reducing coal-burning. It is important that we don’t waste it because we are going to need it. Of course, there’s the point of reducing the amount of carbon dioxi…

Green Comet

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llewelly Jun 22, 2023

@anisian
I've got to wonder what people who study #Milankovitch cycles think of this ...

Jim Bowering Mar 27, 2023

Milutin Milankovitch
Milutin Milankovitch (Milankovic) was a Serbian scientist, born in 1879 in the village of Dalj, in present-day Croatia. It was then part of the Austro-Hungarian Empire. At 17 he took up Civil Engineering at the Vienna University of Technology, going on t
https://greencomet.org/2017/01/10/milutin-milankovitch/
#astronomy #climate #milankovitch #science #seasons #weather

Milutin Milankovitch

Milutin Milankovitch (Milankovic) was a Serbian scientist, born in 1879 in the village of Dalj, in present-day Croatia. It was then part of the Austro-Hungarian Empire. At 17 he took up Civil Engin…

Green Comet

Ruth Mottram Mar 16, 2023

I love the answers by scientists in this @arstechnica piece about #ClimateCycles (ht @andrewdessler ), but it's also a really great introduction to the effects of #Volcanoes #ENSO, #GlacialCycles #milankovitch etc on the climate system...

https://arstechnica.com/science/2023/03/all-the-ways-the-most-common-bit-of-climate-misinformation-is-wrong/

All the ways the most common bit of climate misinformation is wrong

We've looked at natural cycles and causes. None of them can produce this warming.

Ars Technica