Vol 1 Ep 8 - The ice ages

History of the World podcast

Chris Hasler

History

4.8 • 971 Ratings

🗓️ 5 August 2018

⏱️ 41 minutes

🔗️ Recording | iTunes | RSS

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Summary

Find out about the geological science behind glaciation studies, the effect that ice ages have had on our ancestors and the story of Napi being chased across Canada by a sixteen thousand tonne quartzite rock. --- Send in a voice message: https://podcasters.spotify.com/pod/show/historyoftheworldpodcast/message

Transcript

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0:00.0	The History of the World Podcast, written and presented by Chris Hasler
0:26.0	and this is volume one the prehistoric world
0:30.5	episode 8 the Ice Ages World. Oh, Previously on the history of the World Podcast we have discussed the evolution of humans since the lines of the humans and the
1:06.3	chimpanzees split from one another several million years ago. We have talked
1:11.8	about the various species of hominins that have emerged and
1:15.6	disappeared right up to our close relatives the Neanderthals. We have also spoken about the
1:22.1	technologies and capabilities of these animals
1:26.0	and how they link together to result in the amazing evolutionary eventuality which is us.
1:35.0	Hominins have existed on planet Earth for at least six million years.
1:41.0	Over the course of that time they have witnessed severe climate change.
1:46.1	The temperature has fluctuated between warm and cold.
1:50.5	The polar ice sheets have repeatedly expanded and receded.
1:56.0	The oceans have risen and in turn lowered.
2:00.0	Just what is causing this?
2:02.0	How has it affected our evolution?
2:06.0	Plus, how do we even know that this has been going on?
2:11.0	In another special episode where we diverge from the chronology to investigate
2:16.6	an important aspect of history and to gain a better understanding of the story in general,
2:22.1	we are going to study the ice ages.
2:25.0	Over millions of years we have experienced numerous ice ages,
2:30.0	periods of intense cold interlaced with periods of milder conditions.
2:36.0	The last ice age started around 2.5 million years ago, but how and earth can we know that?
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