When did Horizon Season 42 Episode 1 air?
Horizon Season 42 Episode 1 aired on January 13, 2005.
Horizon
Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
Season 42 · Episode 1
Global Dimming
Jan 13, 2005·1h
Horizon producer David Sington on why predictions about the Earth's climate will need to be re-examined.
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How long is Horizon Season 42 Episode 1?
This episode runs for approximately 60 minutes.
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