SciFriday: Older and Colder

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Manage episode 281102860 series 171236
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We look ahead to 2050 and see the world’s population leveling off and beginning to decline. People will be older on average and not all of us will be entirely human. We also discuss the threat of global catastrophe by earthquake or asteroid impact and the implications of global cooling due to the solar minimum. See every new episode at www.SciFriday.tv!

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