Horizon
Snowball Earth (2001x5)
Data di messa in onda: Feb 22, 2001
The controversial theory that for millions of years the Earth was plunged into catastrophe - entirely smothered in ice up to one kilometre thick.
- Iniziato: Feb 1964
- Episodi: 1202
- Followers: 91
- In corso
- BBC Two
- Giovedì alle 21