Episode 103 – The Paleocene-Eocene Thermal Maximum

The Common Descent Podcast

Common Descent

Science, Natural Sciences, Education, Earth Sciences, Science:natural Sciences

4.8 • 764 Ratings

🗓️ 27 December 2020

⏱️ 105 minutes

🔗️ Recording | iTunes | RSS

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Summary

The PETM has been called the largest natural climate change event of the Cenozoic Era. It marks the transition from the ecosystems of the Paleocene to the more familiar world of the Eocene and is thus an important step in making the world the way we know it today. But maybe most importantly, it is a dramatic case study in what happens when a huge amount of Carbon injected into the atmosphere triggers rapid warming of global climate … you know, in case anyone needs to know about that. In the news: pterosaur cousins, oldest pythons, burrowed dinosaurs, and hibernating hominins. Time markers: Intro & Announcements: 00:00:00News: 00:04:30Main discussion, Part 1: 00:32:30Main discussion, Part 2: 01:03:00 Patron question: 01:36:30 Check out our blog for bonus info and pictures:http://commondescentpodcast.wordpress.com/ Find merch at the Common Descent Store! http://zazzle.com/common_descent Follow and Support us on: Patreon: https://www.patreon.com/commondescentpodcast Twitter: https://twitter.com/CommonDescentPCFacebook: https://www.facebook.com/commondescentpodcastInstagram: @commondescentpodcast PodBean: https://commondescentpodcast.podbean.com/ iTunes: https://itunes.apple.com/us/podcast/the-common-descent-podcast/id1207586509?mt=2YouTube: https://www.youtube.com/channel/UCePRXHEnZmTGum2r1l2mduw The Intro and Outro music is “On the Origin of Species” by Protodome. More music like this at http://ocremix.org. Musical Interludes are "Professor Umlaut" by Kevin MacLeod (incompetech.com). Licensed under Creative Commons: By Attribution 3.0http://creativecommons.org/licenses/by/3.0/

Transcript

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0:00.0	You're listening to the Common Descent Podcast.
0:18.5	Hello, Will. Hello, David.
0:20.6	Hello, listeners, Hello, David.
0:26.0	Hello, listeners, and welcome to episode 103 of the Common Descent podcast.
0:32.7	Today's topic is the Paleocene-Eocene Thermal Maximum.
0:33.4	Woo!
0:35.7	The P-E-T-M to its friends.
0:37.0	Yeah, that's much more convenient. It's much, it's a much shorter.
0:38.5	It is a very complicated, big words sort of title that is actually very self-explanatory.
0:44.9	This is an event in Earth's history that occurred at the border between the Paleocene and Eocene epochs about 56 million years ago.
0:53.3	And what makes the event an event is that
0:56.0	there was a lot of heat. Yeah, thermal maximum. It got real warm, real fast, geologically speaking,
1:03.6	which had all sorts of interesting impacts on the world around it and interesting implications
1:10.6	for any scientists interested in
1:13.5	studying what happens when the globe gets particularly warm in a particularly short amount of time.
1:19.7	Yeah, hypothetically, just in case that was ever of interest to anybody.
1:23.4	In some sci-fi situation where the world was heating up at an inordinate rate due to some highly evolved invasive species.
1:31.3	Right.
1:31.7	We would like to know.
1:33.1	Right.
1:33.6	Especially if carbon was involved.
1:35.2	Yes.
	...

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