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Ancient drought 'changed history'
BBC ^
| 12/07/05
| Roland Pease
Posted on 12/08/2005 3:58:46 AM PST by TigerLikesRooster
click here to read article
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To: expatpat
Dating is important as one major known catastrophic event happened at roughly that time. The most recent eruption of a super volcano, Toba in Indonesia happened about 75k years ago and blew a hole 60 by 18 miles wide and up to a mile deep there. Toba is by far the largest geologic event of the last 100k years. Shooting all that material into the atmosphere certainly messed up the world climate for several years. If this African drought happened right after Toba blew than look no further for its explanation. Also look no further than Toba for the reduced human population of that time that genetic research implies. It had to have a major effect on mankind at the time, but I don't think we have any human records, not even the legends of the Australian aborigines, that go back quite that far.
To: TigerLikesRooster
22
posted on
12/08/2005 12:37:43 PM PST
by
Ciexyz
(Let us always remember, the Lord is in control.)
23
posted on
12/08/2005 12:40:08 PM PST
by
Rocket1968
(Durbin must resign - NOW!)
To: JohnBovenmyer
"Also look no further than Toba for the reduced human population of that time that genetic research implies. It had to have a major effect on mankind at the time, but I don't think we have any human records, not even the legends of the Australian aborigines, that go back quite that far." I agree. Probably Toba. I've seen estimates as low as 2,000 for the worldwide human population after Toba. Most are closer to 5,000 with some ranging up to 10,000. Even so, not many people for the whole world.
The Last Glacial Maximum(LGM) 18-23,000 years ago thinned out the human population dramatically too.
24
posted on
12/08/2005 12:51:21 PM PST
by
blam
To: TigerLikesRooster
25
posted on
12/08/2005 12:53:07 PM PST
by
VOA
To: TigerLikesRooster
I'm a proud member of Haplogroup G2
26
posted on
12/08/2005 12:53:48 PM PST
by
add925
To: expatpat
"However, IIRC, they felt the drought, due to an Ice Age, was comewhat more recent than 70,000 years." See my post #24. It may have been the Last Glacial Maximum, the coldest period of the Ice Age.
27
posted on
12/08/2005 12:55:31 PM PST
by
blam
To: SunkenCiv
something on average of one new species every 40 years! Or that fishy Gramma had been drinking wacky juice and squirted out ALL these critters herself!
(This assumin' is FUN! I'll have to do it more often!)
28
posted on
12/08/2005 1:37:23 PM PST
by
Elsie
(Heck is where people, who don't believe in Gosh, think they are not going....)
To: blam
The Last Glacial Maximum(LGM) 18-23,000 years ago thinned out the human population dramatically too. Why??
I'da moved South!!!
29
posted on
12/08/2005 1:39:36 PM PST
by
Elsie
(Heck is where people, who don't believe in Gosh, think they are not going....)
To: blam
Glaciers locking up all the water so that streams and lakes go dry.....
30
posted on
12/08/2005 1:40:34 PM PST
by
Elsie
(Heck is where people, who don't believe in Gosh, think they are not going....)
To: Elsie
Glaciers locking up all the water so that streams and lakes go dry..... Yes, but much more than that. The glaciers suck the moisture out of the air, which is how they grow. The area along the face of a giant glacier can be as dry as a desert.
To: AndrewB
I thought only historians and politicians could do that. : )
32
posted on
12/08/2005 4:57:30 PM PST
by
bigsigh
To: LiteKeeper
33
posted on
12/08/2005 5:26:04 PM PST
by
neverdem
(May you be in heaven a half hour before the devil knows that you're dead.)
To: JohnBovenmyer; blam
The PBS program I referred to was talking about a drought and drop in sea-level that resulted from an Ice Age, when glaciers bound up a great deal of the water in the atmosphere and the oceans, forcing those in interior Africa like the clicking bushmen we are descended from to move.
34
posted on
12/08/2005 6:46:23 PM PST
by
expatpat
To: PatrickHenry
Maybe worth a look.
35
posted on
12/08/2005 6:52:22 PM PST
by
VadeRetro
(Liberalism is a cancer on society. Creationism is a cancer on conservatism.)
To: VadeRetro; Junior
Very interesting. But it's probably a "Blam" thread more than it is one of ours.
Junior, archive?
36
posted on
12/08/2005 6:55:32 PM PST
by
PatrickHenry
(Virtual Ignore for trolls, lunatics, dotards, common scolds, & incurable ignoramuses.)
To: PatrickHenry
Coitenly. The archive's an archive after all...
37
posted on
12/08/2005 7:28:01 PM PST
by
Junior
(From now on, I'll stick to science, and leave the hunting alien mutants to the experts!)
To: expatpat
There have been lots of ice ages in history, but not many super volcano eruptions. When a dramatic drought falls reasonably close to the latter and PBS blames the former I get suspicious. There is loads of liberal angst regarding the former, but little regarding the latter. I guess they haven't figured out how to blame volcanoes on Bush yet. They'd love to have an ice age just to blame Bush for it. Absolute geologic dates c. 75k ago often are give or take a few thousand years. Sometimes data exists to compare one ancient event to another more precisely. I don't know if that exists here. If the drought closely followed Toba I'd blame Toba even if there was an ice age then. It wouldn't surprise me for Toba to have triggered an ice age itself. It put a lot more into the atmosphere than we and the Russians could have in nuclear war, yet the left loved scream about 'nuclear winter.'
To: JohnBovenmyer
How'd we ever get from NW to GW???
Seems to me, if it gets too warm, all we gotta do is pop of a few nukes!!
39
posted on
12/09/2005 5:45:23 AM PST
by
Elsie
(Heck is where people, who don't believe in Gosh, think they are not going....)
To: TigerLikesRooster
It shows equatorial Africa experienced a prolonged period of drought.Al Gore just called. Turns out it was Global Warming that caused this. As the inventor off the internet, Al proclaims that this was a precursor event to show how bad things could get...
Unfortunately the oral history of the local inhabitants failed to carry the message accurately to the present day.(/sarc)
40
posted on
12/09/2005 5:53:59 AM PST
by
Cliff Dweller
("get thar fustest with the mostest." GEN NB Forrest)
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