Naturalist Sir David Attenborough investigates whether the world faces a population crisis and if it is the duty of individuals to change the way they live.
| Title | Horizon - Season 46 Episode 18 : How Many People Can Live on Planet Earth? |
|---|---|
| Alternative Titles | BBC Horizon |
| Subtitle Available |
 ETC.
|
| First Air Date | 1964-02-04 |
| Last Air Date | 2025-10-06 |
| Number of Episodes | 1173 |
| Number of Seasons | 61 |
| Genres | Documentary, |
| Networks | BBC Two, |
| Casts | |
| Plot Keywords | , |
Episodes List
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Horizon Season 46 :Episode 1 Why Are Thin People Not Fat? Why Are Thin People Not Fat?
2009-01-26Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
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Horizon Season 46 :Episode 2 Cannabis: The Evil Weed? Cannabis: The Evil Weed?
2009-02-03Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
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Horizon Season 46 :Episode 3 Why Do We Dream? Why Do We Dream?
2009-02-10Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
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Horizon Season 46 :Episode 4 Can We Make a Star on Earth? Can We Make a Star on Earth?
2009-02-17Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
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Horizon Season 46 :Episode 5 The Secret Life of Your Bodyclock The Secret Life of Your Bodyclock
2009-02-24Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
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Horizon Season 46 :Episode 6 What's the Problem with Nudity? What's the Problem with Nudity?
2009-03-03Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
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Horizon Season 46 :Episode 7 How to Survive a Disaster How to Survive a Disaster
2009-03-10Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
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Horizon Season 46 :Episode 8 Who Do You Want Your Child to Be? Who Do You Want Your Child to Be?
2009-03-17Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
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Horizon Season 46 :Episode 9 Why Can't We Predict Earthquakes? Why Can't We Predict Earthquakes?
2009-03-24Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
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Horizon Season 46 :Episode 10 Alan and Marcus Go Forth and Multiply Alan and Marcus Go Forth and Multiply
2009-03-31Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
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Horizon Season 46 :Episode 11 How Violent Are You? How Violent Are You?
2009-05-12Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
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Horizon Season 46 :Episode 12 Do I Drink Too Much? Do I Drink Too Much?
2009-12-22Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
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Horizon Season 46 :Episode 13 The Secret You The Secret You
2009-12-22Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
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Horizon Season 46 :Episode 14 Fix Me Fix Me
2009-12-22Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
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Horizon Season 46 :Episode 15 Who's Afraid of a Big Black Hole? Who's Afraid of a Big Black Hole?
2009-12-22Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
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Horizon Season 46 :Episode 16 Why Do We Talk? Why Do We Talk?
2009-12-22Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
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Horizon Season 46 :Episode 17 How Long is a Piece of String? How Long is a Piece of String?
2009-12-22Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
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Horizon Season 46 :Episode 18 How Many People Can Live on Planet Earth? How Many People Can Live on Planet Earth?
2009-12-09Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
