Secure Verified
| Title | : | Horizon |
|---|---|---|
| Genre | : | Documentary |
| Air Date | : | 2002-12-05 |
| Season Number | : | 39 |
| Episodes Number | : | 17 |
| Overview | : | 250 million years ago, long before dinosaurs roamed the Earth, the land and oceans teemed with life. This was the Permian, a golden era of biodiversity that was about to come to a crashing end. Within just a few thousand years, 95% of the lifeforms on the planet would be wiped out, in the biggest mass extinction Earth has ever known. What natural disaster could kill on such a massive scale? It is only in recent years that evidence has begun to emerge from rocks in Antarctica, Siberia and Greenland. The demise of the dinosaurs, 65 million years ago (at the so-called K/T boundary), was as nothing compared to the Permian mass extinction. The K/T event killed off 60% of life on Earth; the Permian event 95%. Geological data to explain the destruction have been hard to find, simply because the rocks are so old and therefore subject to all kinds of erosion processes. It seems plausible that some kind of catastrophic environmental change must have made life untenable across vast swathes of the planet. In the early 1990s, the hunt for evidence headed for a region of Siberia known as the Traps. Today it's a sub-Arctic wilderness but 250 million years ago, over 200,000km² of it was a blazing torrent of lava. The Siberian Traps were experiencing a 'flood basalt eruption', the biggest volcanic effect on Earth. Instead of isolated volcanoes spewing out lava, the crust split and curtains of lava were released. And the Siberian flood eruption lasted for millions of years. Could volcanic activity over such a long time alter the climate enough to kill off 95% of life on Earth? |
| Stars | : |
February 03, 1964
Season 1
9 Episodes
January 06, 1965
Season 2
24 Episodes
January 02, 1966
Season 3
23 Episodes
January 17, 1967
Season 4
23 Episodes
January 02, 1968
Season 5
24 Episodes
January 02, 1969
Season 6
37 Episodes
January 05, 1970
Season 7
37 Episodes
January 04, 1971
Season 8
32 Episodes
January 03, 1972
Season 9
33 Episodes
January 04, 1973
Season 10
32 Episodes
January 07, 1974
Season 11
33 Episodes
January 20, 1975
Season 12
26 Episodes
January 05, 1976
Season 13
30 Episodes
January 07, 1977
Season 14
23 Episodes
January 06, 1978
Season 15
24 Episodes
February 26, 1979
Season 16
25 Episodes
January 14, 1980
Season 17
25 Episodes
January 05, 1981
Season 18
27 Episodes
January 11, 1982
Season 19
22 Episodes
January 10, 1983
Season 20
24 Episodes
January 09, 1984
Season 21
22 Episodes
January 07, 1985
Season 22
16 Episodes
January 06, 1986
Season 23
22 Episodes
January 05, 1987
Season 24
22 Episodes
January 04, 1988
Season 25
25 Episodes
January 09, 1989
Season 26
20 Episodes
January 08, 1990
Season 27
20 Episodes
January 07, 1991
Season 28
23 Episodes
January 06, 1992
Season 29
19 Episodes
January 04, 1993
Season 30
21 Episodes
January 10, 1994
Season 31
21 Episodes
January 09, 1995
Season 32
20 Episodes
January 08, 1996
Season 33
16 Episodes
February 27, 1997
Season 34
15 Episodes
February 19, 1998
Season 35
18 Episodes
January 28, 1999
Season 36
14 Episodes
January 12, 2000
Season 37
19 Episodes
January 25, 2001
Season 38
11 Episodes
January 10, 2002
Season 39
18 Episodes
January 09, 2003
Season 40
19 Episodes
January 08, 2004
Season 41
18 Episodes
January 13, 2005
Season 42
20 Episodes
January 12, 2006
Season 43
19 Episodes
March 13, 2007
Season 44
9 Episodes
January 15, 2008
Season 45
17 Episodes
January 26, 2009
Season 46
11 Episodes
October 13, 2009
Season 47
14 Episodes
September 26, 2010
Season 48
15 Episodes
August 08, 2011
Season 49
13 Episodes
July 23, 2012
Season 50
16 Episodes
August 12, 2013
Season 51
11 Episodes
August 17, 2014
Season 52
18 Episodes
March 16, 2016
Season 53
16 Episodes
January 19, 2017
Season 54
15 Episodes
February 05, 2018
Season 55
13 Episodes
January 23, 2019
Season 56
6 Episodes
January 16, 2020
Season 57
8 Episodes
January 04, 2021
Season 58
4 Episodes
March 31, 2022
Season 59
4 Episodes
