llewelly@DrEvanGowan has released a fine new episode of Raised Beaches podcast, about Milankovich cycles! In recent centuries, industrial CO2 has drowned out Milankovich cycles, but Milankovich cycles were a major factor in climate change during the Pleistocene and Pliocene (and presumably before). Bonus: Mars has Milankovich cycles as well.
https://fediscience.org/@DrEvanGowan/113740539812374781
Dr. Evan J. Gowan (@DrEvanGowan@fediscience.org)
Episode 4 of the Raised Beaches Podcast, a podcast on paleoclimate and global change is out! The deep dive in this episode is on Milankovitch Cycles. Get it on Buzzsprout or wherever you get your podcasts. In the intro, I discuss Holocene sea level changes in Okinawa, the Aso Caldera, ammonite fossils, and an overview of my activities in 2024. For the deep dive, I discuss Milankovitch Cycles, the three types of orbital changes and how they affect climate, as well as the LR04 benthic δ¹⁸O and Chinese speleothem δ¹⁸O proxy records, that demonstrate the orbital control on climate change. In the further discussion, I discuss how James Croll originally proposed an orbital control on climate change before Milankovitch, why Charles Darwin was a fan, and why Croll's theory was not accepted. I also show how Milankovitch Cycles also affect the climate of Mars. In the papers section, I discuss one paper by Rubio-Sandoval et al (I am a coauthor) on deducing paleo sea level in Camarones, Argentina. There are four periods of higher-than-present sea level at this location. (link in the next post) I will be posting the video version of this podcast in the coming days! #Podcast #ClimateChange #Paleoclimate https://www.buzzsprout.com/2401751/episodes/16354340-episode-4-milankovitch-cycles
Emilia Jarochowska 🇺🇦🌱