When did Horizon Season 57 Episode 2 air?
Horizon Season 57 Episode 2 aired on January 23, 2020.
Horizon
Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
Season 57 · Episode 2
Chris Packham: 7.7 Billion People And Counting
Jan 23, 2020·1h
Naturalist Chris Packham investigates the impact a growing human population is having on the planet, asking whether the earth can sustain predictions of ten billion people by 2050.
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How long is Horizon Season 57 Episode 2?
This episode runs for approximately 60 minutes.
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