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Horizon: 2001x5
Snowball Earth
The controversial theory that for millions of years the Earth was plunged into catastrophe – entirely smothered in ice up to one kilometre thick.
2001 - 1The Mystery of the Miami Circle Jan. 25, 2001- 2001 - 2The Missing Link Feb. 01, 2001
- 2001 - 3Killer Algae Feb. 08, 2001
- 2001 - 4Ecstasy and Agony Feb. 15, 2001
- 2001 - 5Snowball Earth Feb. 22, 2001
- 2001 - 7The Mystery of the Persian Mummy Sep. 20, 2001
- 2001 - 8The Ape that Took Over the World Oct. 04, 2001
- 2001 - 9Life Blood Oct. 11, 2001
- 2001 - 10The Death Star Oct. 18, 2001
- 2001 - 11Cloning the First Human Oct. 25, 2001